สถานที่กำเนิด
Hebei, China
Weight
60~3000g, heavy type medium type,and light type
Application
Countryard, oil,gas,air pipeline
Design
banded, beaded, plain
Items
Elbow, Tee, Socket, Nipple, Plug, Union, Bushing, Cap, etc
surface treatment
Hot dipped galvanized, Electric galvanized, oil-rust