推荐阅读：第一条 合同范围 _________公司（以下简称甲方）和_________公司（以下简称乙方），经过友好协商，同意合资经营中速船用主机厂。兹同合资经营条件尚未成熟，双方将以补偿贸易进行合作生产并以此作为双方合作的第一步，其条件如下： 1．1 乙方将向甲方转让生
第一条
合同范围
_________公司（以下简称甲方）和_________公司（以下简称乙方），经过友好协商，同意合资经营中速船用主机厂。兹同合资经营条件尚未成熟，双方将以补偿贸易进行合作生产并以此作为双方合作的第一步，其条件如下：
1．1
乙方将向甲方转让生产下列型号中速船用主机（以下简称合同产品）的技术秘密及全部技术资料，其型号如下：
12v——400zc中速船用主机；
12v——600zc中速船用主机。
1．2
“技术文件资料”的定义范围及交付：
本合同1．1款所指的技术资料（以下简称资料）定义是乙方提供合同产品的技术资料由三大部分组成：即乙方现用的一般技术资料，产品设计图纸和生产技术资料，上述资料方包括详细的技术秘密。
（1）一般技术资料包括：
a．12v—600zc中速船用主机的技术规范（包括部装、总装、试车、交货试验等）；
b．12v—400zc中速船用主机的主要零部件的技术规范；
c．合同产品中所使用的配套产品的外型尺寸、安装尺寸和性能参数的样本，
（2）产品设计图纸：
乙方提供合同产品的产品设计图纸应包括：
a．合同产品的全套施工图纸（包括总装图、部件图、系统图、原理图及全部零件的详细图纸）；
b．合同产品的计算资料和计算书；
c．有关船级社发给的证书及交船级社验证的图纸、计算书及其他资料清单；
d．试验书设计图纸及其技术文件。
（3）生产技术资料：乙方提供的合同产品的生产技术资料应包括合同产品全部工艺性指导文件及主要零件的详细制造技术资料；对原材料和合同产品零部件在生产过程中和生产后的质量检验要求，验收手段，验收步骤及验收技术文件。
（4）资料的修改：若乙方采用新技术改进产品、改进工艺过程，降低等需要对提供的资料进行修改时，应将修改的结果以书面形式提供给甲方。
（5）资料的提供方式：
a．对一般技术文件应提供三份蓝图或同等数量的清晰的复制图；
b．对产品设计图纸应提供一份生产底图及两份蓝图；
c．对生产技术资料应提供两份蓝图；
d．对已提供过的完全相同的重复资料，可免于提供，但需在清单中予以注明。
（6）资料的交付进度：
a．根据资料定义的规定，为生产12v—400zc型中速船用主机需要，乙方在签订合同后30天内需向甲方交付合同产品的全部技术资料和全部图纸；
b．根据资料定义的规定，为生产12v—600zc型中速船用主机的需要，乙方在鉴订合同后于_________年_________月_________日前，需向甲方交付合同产品的全部技术资料和图纸。
1．3
甲方将生产的产品向乙方返销如下：
12v—400zc型中速船用主机，每年_________台；
12v—600zc型中速船用主机，每年_________台。
1．4
以补偿贸易进行合作生产期限为2年，2年后若合资经营条件不成熟，则可延长合作生产期限，但最长不得超过5年。第二条
转让技术秘密和技术文件
2．1
乙方向甲方提供合同产品的设计计算、产品图纸、制造工艺、质量控制和试验安装、调试、运转及维修等有关合同产品的全部技术资料，必须和乙方目前使用的资料内容相同。
2．2
合同产品资料的审核和验证：
乙方对提供给甲方的产品设计图纸、制造技术资料的完整性、正确性、清晰性负责。看产品设计图纸和生产技术资料中的任何部分发现有失误，当乙方接到甲方通知时立即补齐遗失部分或更改错误部分。
2．3
在合作生产期间，乙方将以最优惠价格向甲方提供甲方方面市场不能提供的零部件。具体内容另行商定。
2．4
乙方保证向甲方转让的技术秘密和技术资料不受任何第三者的指控。第三条
价格和支付方式
3．1
为了支付转让2．1条款中所规定的12v一400zc型中速船用主机的技术秘密和技术资料费用，乙方应向甲方交付费用如下：
_________年_________u．s．d（大写_________元整）
_________年_________u．s．d（大写_________元整）
_________年起以后的_________年中按每年将产值（即每年总产值扣除进口部分价值和税收费用后的产值）其提成费为_________％。
3．2
合同签署生效后三十（30）天内，甲方按照由银行提交的乙方下列单据，予以第一次支付总金额的_________％，即_________u.s.d（大写：_________美元整）
（1）根据附件_________要求，提供第一批资料的空运提单；
（2）经甲方确认的__________________银行出具不可撤销的保函，正副本各一份；
（3）乙方方的商业发票：一式两份；
（4）乙方方即期汇票一式两份。
3．3
于_________年_________月_________日甲方按收到乙方提交的下列单据后，予以第二次交付_________年总金额的_________％现金，即u．s．d（大写：_________美元整）。
（1）按附件_________要求于_________年_________月_________日提供第二批资料空运提单。
（2）乙方方商业发票一式两份。
（3）乙方方即期汇票一式两份。
3．4
双方同意_________年用现金支付，_________年付_________％现金，其余_________％金额用甲方返销产品补偿。
3．5
_________年的费用本年_________月_________日支付，乙方方交付商业发票一式两份。
3．6
自_________年起及其各年份按3．1款规定的提成费用应在每年_________月_________日在收到乙方方商业发票（一式两份）后支付。
3．7
在合作生产期间鉴于甲方遵照3．1款已向乙方交付了转让技术秘密的部分费用，各合资经营时机成熟，双方同意成立合资经营企业时，则乙方将其剩余部分的技术秘密费用可作提资的一部分。一旦双方不能进行合资经营，在五（5）年之内合作生产被迫终止时，甲方确认向乙方支付技术秘密费用的剩余部分。若出现上述情况，对支付技术秘密费用的进度和方式由双方在通常时候予以协商。第四条
合作生产的补偿贸易
4．1
为有利甲方的外汇平衡，乙方同意甲方生产12v—400ze，12v—600zc中速船用主机返销给乙方。
4．2
上述订单的总价必须保证不低于甲方每年向乙方反付购买零部件所需费用总额的_________％。乙方同意在甲方补偿能力扩大及乙方需求扩大的前提下，其补偿的百分比可以不受限制。
4．3
甲方将以优惠价格向甲方提供产品，其品种、数量、交货期等将由双方在每批合同中商定。甲方产品必须符合乙方的标准。
4．4
乙方要求在甲方接到上述产品图纸后立即试制12v—400zc型中速船用主机。首批产品各一台将分别在双方进行试验，在试验合格的基础上乙方要求甲方于_________年内提供12v—400zc型中速船用主机_________台。其价格、交货期在签订正式合同时商定。第五条
保
证
5．1
乙方保证，在合同有效期内所供应的资料应是最新技术的代身，其内容和甲方目前使用的完全一致。
5．2
乙方保证所供资料是完整的、正确的、清晰的。第六条
税
费
6．1
凡因履行本合同需缴纳的一切税收，发生在甲方方以外的均由乙方承担。
6．2
凡因履行本合同需缴纳的一切税费，发生在甲方以内的均由甲方承担。第七条
商
标
7．1
甲方有权使用乙方商标和合同产品的序号。甲方将下列商标标明在甲方所生产的合同产品上。
7．2
甲方制造的铬牌、报价单、技术规格书、广告、说明书、样本等，凡是合同产品均以甲方名称来表示。第八条
包
装
8．1
须用坚固的木箱包装，适合长途海运、防湿、防潮、防震、防锈、耐粗暴搬运。由于包装不良所发生的损失，卖方应负担由此而产生的一切费用和／或损失。
8．2
卖方应在每件包装上，用不退色油漆清楚地标刷件号、尺码、毛重、净重、“切勿受潮”等字样，并刷有下列唛头：_________
8．3
装箱单两份，注明毛重、净重、尺码和所装货物每项的品名和数量。第九条
人力不可抗拒
9．1
签约双方中的任何一方由于战争及严重的火灾、水灾、台风和地震或其他双方同意的事件而影响执行合同时，双方同意延长合同期限，延长时间相当于事故所影响的时间。
9．2
责任方应尽快将发生的人力不可抗拒事故的情况用电报通知另一方，并在十四（14）天以内以航空、挂号信将有关部门出具的证明文件交给另一方确认。
9．3
受人力不可抗拒事故延续到一至二十（20）天以上时，双方应通过友好协商尽快解决合同继续执行的问题。第十条
仲
裁
10．1
因执行本合同所发生的或与本合同有关的一切争执，双方应通过友好协商解决。已经协商仍不能达成协议时，则提交仲裁解决。
10．2
仲裁地点在瑞典斯德哥尔摩商会。
10．3
仲裁裁决是终局裁决，对双方均有约束力。
10．4
仲裁费用除仲裁机关另有裁决外，应由败诉方负担。
10．5
除了在仲裁过程中进行仲裁的那部份外，合同的其余部分在仲裁期间仍继续执行。第十一条
合同生效及其他
11．1
本合同于_________年_________月_________日由双方代表在_________正式签字，自签字之日起1周内本合同应经有关部门批准后生效。
11．2
本合同以英文书就一式四份，双方各执一式两份。
11．3
本合同有效期见第十一条所述。
11．4
本合同附件为本合同不可分割的部份，与正文有同等效力。
11．5
双方在本合同生效前交换的所有文件、函电等在本合同生效的同时自动失效。
11．6
本合同只能根据同双方授权代表签名或盖章的书面文件进行变更、追加或修改。
11．7
在执行合同期内双方的通讯均以函电进行，书信往来一式两份。第十二条
法定地址
甲方地址：_________
乙方地址：_________甲方（盖章）：_________
乙方（盖章）：_________法定代表人（签字）：_________
法定代表人（签字）：__________________年____月____日
_________年____月____日签订地点：_________
签订地点：_________
附件
article1
_________.（hereinafter
referred
to
as
part
a）and
_________.（hereinafter
referred
to
as
part
b）
have
agreed，
after
friendly
discussion，
to
run
a
medium
speed
marine
main
engine
factory
in
the
form
of
a
joint
-
venture
company.
since
the
conditions
for
the
joint
-
venture
are
not
yet
ready，
both
parties
shall
start
up
a
joint
-
production
with
compensation
trade
as
the
first
step
of
co
-
operation
with
the
following
conditions:
1.1
part
b
shall
transfer
the
technical
know
-
how
and
the
complete
technical
documentation
to
part
a
for
manufacturing
medium
speed
marine
main
engines
（hereinafter
called
contracted
products）
of
the
following
types:
12v-
400zc
medium
speed
marine
main
engine;
12v-
600zc
medium
speed
marine
main
engine.
1.2
definition，
scope
and
delivery
of
technical
documentation:
the
definition
of
technical
documentation
（hereinafter
referred
to
as
documentation）
in
article
1.1
of
this
contract
means
that
the
contracted
products
supplied
by
part
b
are
composed
of
three
parts:
general
technical
documentation，
products
design
drawings
and
manufacturing
technical
documentation，
as
used
by
part
b.
all
of
them
should
contain
the
technical
know
-
how
details.
（1）general
technical
documentation
includes:
a.
the
technical
specifications
of
the
medium
speed
marine
main
engine
of
type
12v-
600zc
（including
sub
-
assembly，
assembly，
test
run，
delivery
tests，
etc.
）;
b.
the
technical
specifications
of
the
main
components
of
the
medium
speed
marine
main
engine
of
type
12v
-
400zc;
c.
overall
dimensions，
installation
dimensions，
and
performance
data
of
the
accessories
used
by
the
contracted
products.
（2）products
design
drawing:
products
design
drawings
of
the
contract
products
supplied
by
part
b，
shall
inclued:
a.
a
complete
set
of
production
drawings
of
the
contracted
products
（including
the
final
assembly
drawings，
components
drawings，
system
diagram，
principle
diagram，
and
detailed
drawings
of
all
components）;
b.
the
calculating
data
and
calculation
manual
of
the
contracted
products;
c.
drawings，
calculating
manual
and
other
data
given
to
the
classification
societies
and
certificate
issued
by
the
classification
societies;
d.
test
platform
design
drawings
and
its
technical
documents.
（3）manufacturing
technical
documentation:
manufacturing
technical
documentation
of
the
contracted
products
provided
by
part
b
shall
include:
the
whole
detailed
instructive
documentation
and
main
components
for
the
manufacturing
of
the
contracted
products，
which
shall
include:
requirements
of
quality
inspection
means，
processes
and
technical
conditions
of
acceptance
test
to
the
raw
materials
and
components
of
the
contracted
products
during
and
after
the
manufacturing
processes.
（4）modification
of
documentation:
if
the
documentation
to
be
supplied
is
modified
by
site
as
a
result
of
using
new
technology
to
improve
the
products，
processes
and
reduce
the
cost，
the
detailed
information
shall
be
submitted
to
part
a
in
written
form.
（5）mode
of
providing
documentation:
a.
for
general
technical
documentation，
three
prints
of
three
legible
copies
should
be
provided;
b.
for
design
drawings，
one
manufacturing
transparency
and
two
prints
shall
be
provided;
c.
for
manufacturing
technical
documentation，
two
prints
shall
be
provided;
d.
the
duplicated
documentation，
which
had
been
supplied
before，
can
be
exemped，
but
must
be
noted
in
the
list.
（6）delivery
schedule
of
documentation:
a.
according
to
the
definition
of
documentation，
in
order
to
facilitate
the
manufacturer
of
medium
speed
marine
main
engine
of
type
12v
-
400zc，
part
b
shall
deliver
the
whole
technical
documentation
and
drawing
of
contracted
products
to
part
a
within
30
days
after
the
signing
of
the
contract;
b.
according
to
the
definition
of
documentation
in
order
to
manufacture
the
medium
speed
maline
main
engine
of
type
12v
-
600zc，
site
shall
submit
to
part
a
the
whole
technical
documentation
and
drawings
of
the
contracted
products
before_________$$$after
the
signing
of
the
contract.
1.3
the
products
manufactured
by
part
a
shall
be
resold
to
part
b
as
follows:
medium
speed
marine
engine
of
type
12v
-
400zc_________sets
per
year;
medium
speed
marine
engine
of
type
12v-
600zc_________sets
per
year;
1.4
the
period
of
joint
-
production
with
compensation
trade
is
two
years.
should
the
conditions
for
establishing
a
joint
-
venture
be
still
not
ready
after
the
said
period，
the
said
period
can
be
extended，
but
in
no
circumstances
shall
it
be
extended
for
more
than
five
years.article
2
transfer
of
technical
know-
how
and
technical
documentation
2.1
the
complete
technical
documentation
of
designs，
calculations，
drawings，
manufacturing
processes，
quality
control，
tests，
installation，
adjustment，
operation
and
maintenance
shall
be
provided
by
part
b
to
part
a
concerning
the
contracted
products
and
must
be
the
same
as
those
being
currently
used
by
part
b.
2.2
checking
and
verifying
the
documentation
of
the
contracted
products:
part
b
shall
be
responsible
for
the
completeness，
correctness
and
legibility
of
the
product
design
drawings
and
manufacturing
technical
documentation
sent
to
part
a.
in
case
any
part
of
the
said
drawings
and
documentation
are
missing，
part
b
shall
make
supplementary
delivery
of
correction
immediately
upon
notification
by
part
b.
2.3
during
the
joint-
production
period，
part
b
shall，
at
most
favoured
prices，
supply
part
a
with
spare
parts
of
the
contracted
products
which
are
not
available
in
the
market
of
part
a's
side.
these
supplies
are
subject
to
separate
agreements
in
due
course.
2.4
part
b
guarantees
that
the
transfer
of
the
technical
knowhow
and
technical
documentation
hereof
will
not
involve
any
accusation
from
any
third
party.article
3
prices
and
termsof
payment
3.1
part
a
shall
pay
part
b
for
the
transfer
of
technical
knowhow
and
technical
documentation
of
the
medium
speed
marine
main
engine
of
type
12v-
400zc
stipulated
in
clause
2.1
as
follows:
_________us
_________（say:
_________u.s.d.
only）
_________us
_________（say:
_________u.s.d.
only）
during
the
2
years'period
commencing
from
19
，the
yearly
fee
shall
be
taken
as
_________%
of
the
net
annual
production
value
（total
annual
production
value
minus
the
value
of
the
imported
parts
and
tax
expenses）.
3.2
the
first
payment
is
us
$
_________（say:
_________u.s.d.only）
constituting
%
of
total
payment
and
shall
be
made
within
30（thirty）
days
after
the
contract
is
signed
and
comes
into
force，
upon
receipt
of
the
following
documents
from
part
b
through
the
bank_________:
（1）supply
air-
freight
bill
of
the
first
batch
of
documentation
according
to
the
requirement
of
appendix_________;
（2）irrevocable
letter
of
guarantee
in
duplicate（one
original，one
copy）issued
by_________band
and
confirmed
by
part
a.
（3）part
b
commercial
invoice
in
duplicate;
（4）part
b
sight
draft
in
duplicate.
3.3
the
second
payment
shall
amount
to
_________%
of
the
total
payment
due
in
_________，
i.e.
_________u.s.d.
（say:
_________u.s.d.
only）
and
shall
be
paid
to
part
b
on
_________，
_________.
upon
the
receipt
by
part
a
from
part
b
of
the
following
documents:
（1）air
-
freightbillof
thesecondbatchof
documentationdeliveredbypart
bon_________，
_________，pursuant
to
stipulations
in
appendix_________;
（2）part
b
commercial
invoice
in
duplicate;
（3）part
b
sight
draft
in
duplicate.
3.4
both
parties
agree
to
settle
in
cash
in
_________while
the
settlement
in
_________will
be_________%
in
cash
and
the
remaining
_________%
shall
be
made
through
compensation
of
resale
from
part
a.
3.5
the
payment
of
_________
will
be
due
on_________
th
_________of
the
year
upon
receipt
of
the
commercial
invoices
in
duplicate
from
part
b.
3.6
the
yearly
payments
from
19
onward
as
per
clause
3.1.
are
due
on
_________，
_________，
of
each
year
upon
receipt
of
2
copies
of
the
commercial
invoice
from
part
b.
3.7
part
of
the
know
-
how
transferring
fee
would
be
paid
to
part
b
by
part
a
as
per
clause
3.1.
during
the
joint
-
production
period，
and
the
unpaid
part
would
be
converted
as
the
investment
of
part
b
to
the
joint
-
venture
when
the
joint-venture
comes
to
realisation.
should
the
joint
-
venture
miscarry
and
the
joint-
production
be
forced
to
terminate
within
5
（five）
years，
part
a
shall
confirm
that
the
unpaid
part
of
the
know
-
how
transferring
fee
shall
fully
be
remitted
to
part
b
by
part
a.
in
each
of
the
above
-
mentioned
cases，
evaluating
the
mode
of
payment
of
the
know
-
how
transferring
fee
shall
be
agreed
upon
by
both
parties
through
consultation
in
due
course.article
4
joint-
production
andcompensation
trade
4.1
for
the
purpose
of
balancing
part
a'
s
foreign
exchange，
part
b
agrees
to
buy
-
back
the
medium
speed
marine
main
engines
of
type
12v-
400zc
and
12v-
600zc
produced
by
part
a.
4.2
the
total
value
of
the
above
mentioned
orders
shall
not
be
less
than
_________%
of
the
expenses
for
purchasing
components
by
part
a
from
part
b.
part
b
agrees
that
under
the
prerequisite
of
increased
compensation
capability
of
part
a
and
increased
demand
of
part
b
the
percentage
of
payments
compensated
through
the
back
-
sale
of
pite's
products
can
be
increased
without
limitation.
4.3
products
supplied
to
part
b
by
part
a
shall
be
at
favourable
prices，
types，
quantity，
and
delivery
time
of
the
products
shall
be
agreed
in
the
contract
for
every
order
by
both
pareties.
quality
of
part
a's
products
has
to
meet
part
b's
standard.
4.4
part
b
shall
require
part
a
to
start
the
trial
production
of
medium
speed
marine
main
engine
of
type
12v
-
400zc
immediately
upon
receiving
their
drawings.
the
first
products，
one
for
each
party，
shall
be
tested
separately
by
both
parties
and
part
b
shall，
on
the
basis
of
satisfactory
tests，
require
part
a
to
deliver_________（
_________）sets
of
medium
speed
marine
main
engine
of
type
12v-
400zc
within
19
_________.
the
prices
and
delivery
periods
shall
be
agreed
upon
when
the
contract
is
concluded.article
5
guarantee
5.1
part
b
guarantees
that
the
documentation
supplied
shall
be
of
the
latest
technological
achievement
within
the
valid
period
of
the
contract
and
shall
be
exactly
identical
with
the
documentation
currently
used
by
part
b.
5.2
part
b
guarantees
that
the
documentation
supplied
shall
be
complete，
correct
and
legible.article
6
tax
and
duty
6.1
all
taxes，
customs
and
other
duties
in
connection
with
the
performance
of
the
contract
arising
outside
the
part
a
side
shall
be
borne
by
part
b.
6.2
all
taxes，
customs
and
other
duties
in
connection
with
the
performance
of
the
contract
arising
inside
the
part
a
side
shall
be
borne
by
part
a.article
7
trademark
7.1
part
a
shall
have
the
right
to
use
the
part
b
trademark
and
serial
number
of
contracted
products.
part
a
shall
label
the
trademark
smith
-
portla
co，
ltd.
on
the
contracted
products
so
produced.
7.2
nameplates，
quotations，
technical
specifications，
advertisement，
instruction
manuals，
samples
of
the
contracted
products
manufactured
by
part
a
shall
all
be
labelled
with
the
name
of
part
a.article
8
packing
8.1
packing
shall
be
in
the
form
of
strong
wooden
case
（s）
suitable
for
long
voyage
and
well
protected
against
dampness，
moisture，
shock，
rust
and
rough
handling.
the
seller
shall
be
liable
for
any
damage
to
the
goods
and
extra
expenses
due
to
improper
packing，
inadequate
or
improper
protective
measures.
8.2
the
package
number，
measurements，
gross
weight，
net
weight，
the
words
"keep
away
from
moisture"and
the
following
shipping
marks
shall
be
printed
with
fadeless
paint
on
each
package:
（1）part
b/part
a
12v
-
400zc
（2）part
b/part
a12v-
600zc
8.3
packing
list
in
duplicate
indicating
gross
and
net
weight，measurements
and
quantity
of
each
item
is
included.article
9
force
majeure
9.1
should
either
party
of
the
contract
be
prevented
from
implementing
the
contract
by
such
cases
of
force
majeure
as
war，
serious
fire，
flood，
typhoon
and
earthquake，
or
other
events
confirmed
by
both
parties，
the
time
for
implementing
the
contract
shall
be
extended
by
a
period
equal
to
the
effect
of
such
force
majeure.
9.2
the
party
concerned
shall
notify
the
other
party
by
cable
within
the
shortest
possible
time
after
occurrence
of
the
force
majeure
and
send
by
registered
airmail
within
14
（fourteen）
days
to
the
other
party
a
certificate
issued
by
relevant
authorities
for
confirmation.
9.3
should
the
effects
of
force
majeure
continue
for
more
than
120
（one
hundred
twenty）
consecutive
days，
both
parties
shall
settle
further
execution
of
the
contract
through
friendly
negotiations
as
soon
as
possible.article10
arbitration
10.1
all
disputes
relating
to
the
contractor
arising
from
the
execution
of
the
contract
shall
be
setfled
through
friendly
consultations
between
both
parties.
should
no
settlemnt
be
reached，
the
disputes
shall
be
submitted
to
arbitration.
10.2
the
arbitration
shall
take
place
in
stockholm，
sweden，
and
be
conducted
by
the
arbitration
institute
of
the
stockholm
chamber
of
commerce.
10.3
the
arbitration
award
shall
be
final
and
binding
on
both
parties.
10.4
the
arbitration
fee
shall
be
borne
by
the
losing
party
except
otherwise
awarded
by
the
arbitration
institute.
10.5
in
the
course
of
arbi.
tration，
the
contract
shall
continuously
be
executed
by
both
parties
except
for
the
part
which
is
under
arbitration.article
11
effectivenessof
the
contract
and
miscellaneous
11.1
this
contract
is
formally
signed
by
the
representatives
of
both
parties
in_________/
（place）
on
_________，
and
shall
be
approved
by
the
relevant
authorities
within
one
week
to
become
effective.
11.2
this
contract
shall
be
written
in
english
in
four
copies.
each
party
shall
keep
two
copies.
11.3
the
duration
of
the
contract
is
stipulated
in
art.
11.
11.4
appendix
to
the
contract
shall
form
an
integral
part
of
the
contract
and
shall
have
the
same
binding
force
as
the
contract
itseff.
11.5
all
documents，
letters，
telegrams
and
telexes
interexchanged
between
both
parties
before
the
signing
of
the
contract
shall
become
null
and
void
automatically
from
the
date
on
which
the
contract
comes
into
force.
11.6
this
contract
can
only
be
altered，
amended
and
supplemented
in
accordance
with
the
documents
which
have
been
signed
or
stamped
by
the
authorised
representatives
of
both
parties.
11.7
letters，
telegrams
and
telexes
shall
be
used
for
communication
between
both
parties
during
the
contracted
period.
letters
shall
be
in
duplicates.article
12
legal
addresses
parta（address）：_________
partb（address）：_________party
a(signature):_________
party
b(signature):_________date:_________
date:_________
