- DIFFERENCE BETWEEN PRE-GALVANIZED STEEL TUBE AND HOT-GALVANIZED STEEL TUBEHot dip galvanized pipe is the natural black steel tube after manufacturing immersed in the plating solution.Mar 1,2022
- Arbor Day-Everyone has a responsibility to protect the environmentOn March 12, 2020,Mar 12,2021
We will usher in the 42nd Arbor Day after the founding of New China.
This day, I planted a sapling by myself,
It is planting a green hope.