1)Size: DN15-DN100, 1"-6" 2)Standard: DIN, SMS, GB, ASME, etc 3)Material: A105, A182, 304, ... , 321, 304, 304L, 316, 316L, WPS, WPB, ST37, ST54. 4. Standard:ASME, ANSI, GB, JIS, BS, DIN, ISO and Non ... standard. 5. Size: 1/2" to 48" or Non-Standard specification according to your drawing 6 ...