An enterprise integrating R&D, manufacturing and sales of various special steel pipe series products

Changzhou Lianyi Special Stainless Steel Pipe Co., Ltd.

Changzhou City Lianyi Special Stainless Steel Tubes Co., Ltd was found in 1984, formerly known as the Wujin Experimental Factory of Shanghai Iron and Steel Research Institute. Lianyi is one of the national High-tech Enterprise specializing in the R&D and manufacture of High-Temperature Alloy Pipes, Special Stainless Steel Pipes and stainless steel bellows in the fields of Aviation, Aerospace, Rail Transit, Automobile Engines, Hydraulics and Pneumatics, and New Energy, etc.

As the first batch of domestic enterprises to obtain the national stainless steel pipe production license, Changzhou Lianyi has been awarded the title of "AAA" credit enterprise at the municipal level of Changzhou for 20 consecutive years, and has successively passed ISO9001, ISO14001, IATF16949-2016, AS9100D, etc.

Changzhou Lianyi focuses on R&D of stainless steel tubes which are rare and hard to manufacture. Also, Lianyi is profession in the production of Large-Diameter Ultra-Thin-Walled Tubes, Small-Diameter Ultra-Thin-Walled Tubes, Small-Diameter Thick-Walled Tubes, and Small-Diameter Capillary Tubes. What’s more, the textured characteristic roughness of inner surface of pipes produced by Lianyi has reached the international top level.

In the future, Lianyi will keep motivated and innovated, uphold the enterprise spirit and business philosophy of “To be Honest, Credit-based, Quality-Oriented, and Customer First”. 

  • 1984year


  • 60000

    Land area

  • 40000

    Construction area

  • 2000t

    Annual production


Address: No. 109, Dailuo Road, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province

Copyright ©2021 Changzhou Lianyi Special Stainless Steel Pipe Co., Ltd. 苏ICP备20021521号-1 Website construction: www.300.cn Changzhou