Quality Control

Raw Materials

Our raw materials come from well-known steel mills in China.

MTC checking (PMI), Tensile strength test, Surface/Dimension inspection.

Prodcution

Specially assigned person shall follow up and check according to the process flow card, and finally keep the copy.

Before shipment

Eddy current surface flaw detection, 30 times magnifying glass surface inspection, salt spray test, tensile test, winding test, torsion number test..