1. excellent raw materials 2. leakage test one by one 3. precise angles 4. good antirust property 5. strong package

1.British standard:

Material: EN1562  ISO5922

Dimension: BS EN10242 BS 143&1256

Galvanization: ASTM A153

Threads: ISO7/1

Size:1/8 to 4”

  2. Hot dipped galvaznized using the first class zinc,normal black and shinning black.

  3.. excellent raw materials

4. leakage test one by one

5. precise angles