Company Information
| Company Introduction : | ZHOUSHAN QUNYING SCREW has strong technical force, equipped with advanced equipment and pvc screw barrel tests. Mostly products materials are selected from high quality powder alloy steel with the best materials to exploit market and most new materials, add reasonable process design through tempering, molding, qualitative, nitriding, fine grinding, polishing process of refining. |
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| Main Products : | PVC Screws Barrels,Screws And Barrels |
China