... pipe capsWall thickness Std, S40, S60, S80, Xs,FinishSatin, polish Surface treatmentTransparent oil, rust-proof black oil or hot galvanized. ... -type forming and chamfering.2.Production Flow Of Steel Pipe Cap Our company has complete production equipment capable of meeting ... Trading Co., Ltd is a professional pipe cap manufacturer and supplier in China. Our pipe caps have passed the ISO9000, ISO14001, ...