Other Oil Field Equipments ท่ออุปกรณ์เจาะท่อ St33-2 St33 St37 St42 St34-2 St37-2 St42-2 St52-3 Rock Rrilling Tool Oil Casing
Stainless Steel Pipes ASTM S235 / A53 Grade B / A500 Grade a / Stk400 / Ss400 / St42.2 Hot DIP Galvanized Seamless/Welded Steel Pipe HDG Pipe