Detail: OD 168.28 / 177.80 mm API 5L Gr.B Seamless Steel Pipe STC , LTC And BTC Specifications new produce API 5L Gr.B seamless steel pipe 1.made in china 2.ISO Standard 4.ASTM and API certificate....
Tianjin LANG Steel Pipe Manufacturing Co., Ltd.( hereinafter referred to as XSP) which is a cold drawn working line, a general steel factory engaged in pipe manufacture, the R& D, design, manufacture....