Standard:ASME/ANSI,B16.9,SH3409-96,SH3408-96 Material: ... company engaged in the research, development and manufacture of pipe fittings. With 20 years' history, our company owns ... GB/T13401, and the United States and abroad ASME / ANSI, German DIN, Japanese, JIS, and other relevant standards. We ... elbows, tees, reducers, lap joint stub ends,flange and pipe caps, using materials of 321, 304, 304L, 316, ...