90 degree elbow 1:ISO-9001:2000 2:ANSI/ASME.JIS.DIN 3:1/2inch-60inch 4:Good quality supplier Hebei baiyi steel pipe co., Ltd locates in the pipe equipment manufacturing base Yanshan Industrial Zone, cangzhou of Hebei Province, is a professional manufacture of steel pipe and pipe fittings of China . We are specialized in producting kinds of 10mm_406mm*2_50mm seamless steel pipe, hot-finished steel ...