1. Raw material selection, inspection and stock.
Every lot raw material will be selected and take inspection before put into stock.
2. Injection, machining and assembling process control.
Every production process is controlled by QC to ensure no unqualified parts into the next process
3. Hydraulic test.
Each valve take hydraulic test before packing
4 Laboratory test.
Each lot of production take laboratory test to ensure the goods qualified.
Carton and plywood case packing to ensure the goods keep safe and dry during shipment.