C45 Seamless Tube The inventory is sufficiency. API 5L and API 5CT certificates. ISO certificate C45 Seamless TubeThe inventory is sufficiency.API 5L and API 5CT certificates.ISO certificateCompany NameShandong Zhongzheng Steel pipe Manufacturing...

A1045 Seamless Tube The inventory is sufficiency. API 5L and API 5CT certificates. ISO certificate A1045 Seamless TubeThe inventory is sufficiency.API 5L and API 5CT certificates.ISO certificateCompany NameShandong Zhongzheng Steel pipe Manufacturing...

ERW square steel pipe 1.Standard:GB ASTM JIS 2.OD:20-150mm 3.WT:0.5-5mm 4.LTH:As your wish  ERW square steel pipe1.Standard:GB ASTM JIS2.OD:20-150mm3.WT:0.5-5mm4.LTH:As your wish TypeSquare pipe/Rectangular tubeSpecification10*10-400*400mmWall...

Q345B Seamless Tube The inventory is sufficiency. API 5L and API 5CT certificates. ISO certificate Q345B Seamless TubeThe inventory is sufficiency.API 5L and API 5CT certificates.ISO certificateCompany NameShandong Zhongzheng Steel pipe Manufacturing...

CK45 Seamless Tube The inventory is sufficiency. API 5L and API 5CT certificates. ISO certificate CK45 Seamless TubeThe inventory is sufficiency.API 5L and API 5CT certificates.ISO certificateCompany NameShandong Zhongzheng Steel pipe Manufacturing...

Hot dip galvanized pipe: 1.OD.20-630m,WT.1.5-37mm. 2.Business type manufacturer 3 Certificates:ISO & API It is with great pleasure to introduce you to my company quality products. My company is founded in 2006 large seamless steel tube manufacturer:...