API 5CT Grade J55 Steel Casing Pipe Cangzhou Zhonghai Metal Products Co., Ltd. Base Info Length:12mGrade:HRB335Standard:APITrademark:zhonghaiTransport Package:ContainerSpecification:o. 8tonOrigin:CangzhouHS Code:7304199000 Description Pre:ASTM/BS  En/DIN/GB Carbon Steel ERW Steel Pipe Next:ERW Welded Carbon Steel Pipe