EVERBRIGHT

Speed test machine: It's important and functional inspection for self dilling screw & drywall screw and also represents usage result.

Precision instrument: Used for screw and raw material testing. Coolant liquid will spray when machine works, thus good can keep cool and its hardness & organization will change accordingly.

Polish equipment: it's necessay process of metallographic micrpscope.Water coming inside for cooling product when machine works. thus good can keep cool and ITS hardness & organization will change accordingly.

Metallographic micrpscope: testing raw material in case of decarbonization which causeS big issues in drilling, torque force,thread and so on

Vickers hardness test: it's necessary process for inspecting hardness of carburizing screw, including surface hardness,core hardness,carburizing layer according to standard of ISO2702、DIN267-12、JIS B1055 and so on.

Salt Spray Test: testing products' resistance to corrosion according to standard ISO9227;DIN50021;ASTM B117 and so on.