Since 1982, it has been developing and producing pipeline

continuous transmission and compression Construction Department

Column equipment has been more than thirty years of history,
has accumulated a wealth of practical experience.onceSuccessively
in Nanjing, Beijing, Hubei, Jingmen, Honghu, Tianjin,Xi'an, Inner
Mongolia,intoXiangtan,Qingdao and other places engagedin dozens
of oil and gas pipeline pluggingProject work, the projecthas been
a complete success.

 The company has advanced level of precision machinery and equipment.
 With standing boring and millingHeart, CNCthree roll bending machine,
 CNC intersecting line cutting machine, all fiber trolley furnace,

 bigType vertical lathe,boring machine, milling machine, planer,

 lathe and other processing equipment. Attach importance to

 personnel training,Pioneering and innovative, new forces for the

 technical team.Independent research and development of a number 

 of products and won Patent.

Have a professional, comprehensive, hard-working and dedication

Team. We have to carry forward the Changlin group "inheritance
of military quality, hard service"Customer service" for the
purpose; to create a "hundred years enterprise" as the goal; to
achieve customers,Integrity, responsibility, efficient cooperation
at the core; to provide customers with the best quality service.

The company has passed the ISO9001, ISO14001 and OHSAS18001
systems Certification has been made by the State Administration
of quality supervision, inspection and Quarantine issued by A1
(2) and A2 (1),B1, B2 valves, B1 (2), class B2 pressure piping
components manufacturing license, long lost(oil and gas) pipeline
plugging (Grade A), as a member of the Sinopec material resource
marketA network member unit of a unit and a supplier.