carbon steel tee A.ISO-9001:2000 B.ANSI/ASME,JIS,DIN C.1/2"-60" D.Good quality supplier carbon steel tee,a234 wpb tee,a234 carbon steel teeHEBEI SHENGTIAN PIPE-FITTINGS GROUP CO.,LTD.Hebei Shengtian Pipe-Fittings Group Co., Ltd. was established in 1989. We are located in Mengcun County in Hebei Province, covering an area of 100,000 square meters, with a workshop of 25,000 square meters and ...