คุณสมบัติ:
Certificate: ISO
American Standard: ASME B16.5
Material -1: Carbon steel ASTM A105
Material -2: Stainless steel SS ASTM A182, SS 304 , SS 316
Flange Face: FF / RF
W.pressure: Class 150, Class 300 etc.
Surface: Original / Black painting / hot dip galvanized