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Product quality is the life of Kejian, for the good quality control of the product production, Kejian has invested dedicated personnel that are responsible for the inspection from windows and doors raw materials incoming, manufacturing process to finished products.

A complete production network: Every project will be strictly controlled to follow the quality standard from cutting to assembly, to ensure all extrusion types and components quantity are well-matched.
Quality as priority: Dominate by the mold, consummate by the CNC processing centers, to reduce manual operation and improve production efficiency, and ensure product precision.
First piece manufacture: Has established the system of first piece to be made and inspected during every process, to avoid and eradicate production mistakes or errors during mass production.
In-process inspection: Inspection form is conducted on every process of production to specify the production responsibility to ensure the product quality. 

1 Cutting
2 Machining
3 Assembling
4 Corner Assembly
5 Components installing
6 Bead installing
7 Finished products inspection
8 Finished products packing