Hebei Changfeng Steel Tube Manufacturing Group Co.,Ltd. As the ERW Carbon steel pipes manufacturer in Canghzou City Hebei Provence, China, Our factory owns itself direct exporting right, we sale the pipes to many other countries such as America,Europe,Middle east , also Australia,Southeast Asia,South Africa ,etc Our Main products: ERW Steel Pipes O.D. from 88.9mm to 660.4mm WT from 3mm to 22mm Standard : API 5L PSL1/PSL2,API 5CT PSL1/PSL2,ISO9001-2008,CE,EN10210-1/-2, EN10217-1/-2,EN10219-1/-2, AS/NZS1163-2009,AS/NZS1163-2016,ASTM A53,A672,A500, GB/T9711 and GB/T3091 etc Material: GR.A.B.C.D,X42--X70,S235,S275,S355,E235,E355,C250,C250LO,C350,C350LO,Q235B,Q345B,20# etc Certificate:API 5L,API 5CT, ISO9001-2008,CE Cetificates,Business licence,etc International Sales Director Tom Lv E-Mail| tomlv@changfengsteeltube.com changfengsteeltube@gmail.com WhatsApp|+86-13754534514 Mobile| +86-13754534514 Skype:steelpipeman9527 T | +86-317-3098716 F |+86-317-3096617 W | www.changfengsteeltube.com