Slotted Set Screw

Quality Control of Poray Screws

Our fastener/screw/bolt/nut products can meet the strict testing standards. Testing standards of the European Union-ROHS, the United States-California 65 standard, Japan-SONY00259 etc., and even more stringent testing standards. At present, our salt spray test standard can reach up to 2000 hours, and the surface hardness can reach up to HV2000. Welcome to contact with us …

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