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National patent door hinge

Change the tradional door hinge damage to walls and floors. This is a complex, you don’t need buy door stopper.It including the permanent magnet.

Open door angle adjustment 90-130

Convenient adjustment

The material is the baosteel premium quality steel

Powder type mute bearing

SGS test:salt mist test 48hous,no corrosion (our hinge can reach to 96hous, SGS AQL is 24hous

20 years no rust

Open and close quantity at least 500K