plastic material, which has a larger and tighter contact area with the corrugated plate. Under normal installation conditions,
there is absolutely no leakage at the position of the screw hole.
and the effective protection area of the corrugated plate is increased by 108%. Taking 3 sets of screws per square meter as an example,
the wind resistance performance is increased by more than 3 times.
screws and paint-coated screws.
One Process, Easy to Install.












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