Basic Info.

Product Description

1.we are one bigger seamless steel pipe manufacturer in china . 2.standard :astm a106 grb /astm a53 grb /api 5l grb /st 52 3.od : 1 1/4'' to 8'' thinkness sch20 sch40 sch 80 ,xs xxs 4.od: 8'' to 12'' thinkness 20mm to 45mm