1 External Inspection : Purchased Item Inspection , Outsourcing Item Inspection .
2 Process Inspection : First Inspection, Random Inspection , Handover Inspection .
3 Final Quality Inspection : External Dimensions Inspection , 100% Hydraulic Test .
4 Type Inspection
a : hard chrome plating
b : thickness of 0.03-0.05mm;
c : in-house salt spray test
a : standard material-#45, SAE1045, CK45
b : surface roughness: Ra0.4-0.08micron
Seals NOK, Hallite , Parker etc .
Welding mannual & machine welding
Every piece of hydraulic cylinder are tested and will send out only after they are pasted the each test .
Our company has abundant technical force and perfect testing means . By making wide technical and business cooperation with many related enterprises , universities, colleges and institutes both at home and abroad , and employing senior engineers and software engineers , we have greatly strengthened and improved our designing , processing, and testing abilities .