We, Zhongyuan Pipeline Manufacturing Co., Ltd., are the biggest and professional manufacturer of SSAW pipe and ERW pipe with coating in our location.

Our production range is as following: Spirally Submerged-arc Welded Steel Pipe (SSAW or SAWH or HSAW) Outside diameter: 219.1-3620mm Wall thickness: 5-25.4mm Material and Standard: API 5L : Gr.B,X42,X46,X52,X56,X60,X65,X70,X80.

ASTM A53 : Gr.B.

DIN1626 : ST37,ST44,ST52 ASTM A252 : Gr.2,Gr.3.

AWWA C200 GB/T9711 : Q235B,L245,L290,L320,L360,L390,L415,L450,L485,L555 Q345B Electrical Resistance Welded Steel Pipe (ERW or stretch reduction or hot-rolled) Outside diameter: 88.9-609.6mm Wall thickness: 4.5-12mm Material and Standard: API 5L : Gr.B.

ASTM A53 : Gr.B.

GB/T8163 : 20# Coating line: O.D.323.9-O.D.1829mm for PE and PP Standard: DIN30670,SY/T0413-2002,GB/T23257-2009 O.D.610-O.D.3620mm epoxy painting, Standard: AWWA C210, SY/T0457-2000, SY/T0447-96 We passed and have certificates of ISO9001, ISO14001, GB/T28001, PED, CNAS, API 5L, 5CT, 5B.