Firstly, from the perspective of material selection, the mold steel used in Jingpeng's processing of punching needles is purchased from genuine raw materials from large factories, with an added QC testing process for raw materials and accompanied by material testing reports, thus ensuring quality control from the source;

Then Jingpeng arranges patrol inspection for each process, and the delivery inspection report is attached to the delivery inspection. It is equipped with high-end inspection equipment: anime, three-dimensional, micrometer, projector, microscope, etc. All QC inspections are for the purpose of delivering high-quality needles to customers;