タイトルまたは説明

Planishing
blending
3.straightening Verticality<1, straightness<1mm/m
4.Automatic welding and mounting welding
smooth, uniform, flawless, no crack

5.acid pickling
We remove impurities **0%

6.Hot DIP Galvanized both externally and internally
Galvanzied surface smooth and beautiful
thickness>*8
No falling offin hammer experiment,
With more than *0 years lifespan

7.Electronstatic spray
Has high transfer efficiency
Thickness >*0