What brands of aluminum alloy door and window hardware fittings are there:

Chinalco aluminum

Southeast Asia aluminum

Jianmei aluminum

Fenglv aluminum

Zhongwang aluminum

Xingfa aluminum

Dongliang aluminum

Nanshan aluminum

Jingge aluminum profile

Weiye aluminum

.

horizontal door, internal and external handle, lock core, lock body, square shaft core, hinge, hanging window, sliding support, telescopic support, handle, fork, connecting rod and lock mouth.

Quality requirements for aluminum alloy doors and windows:

1. There should be no obvious defects such as scratches, scratches and bumps on the surfaces of doors and windows.

2. There should be no obvious color difference on the colored surfaces of adjacent bars of doors and windows.

13. There should be no aluminium scrap, burr, oil stain or other stains on the surface of doors and windows, and there should be no overflow adhesive at the assembly joint.