Zhoushan Hengrui Machinery Co. Ltd.

Our company use high-quality alloy steels to produce screws and barrels, along with a complete Injection Molding Barrel set of manufacturing, heat treatment, bimetal baking, and alloy spray welding processes, as well as advanced inspection equipments, to ensure the quality of the products, and to make them have long lifespan and good abrasion and corrosion resistance. Our company undertake businesses including design, mapping, restoration and batch processing. With the full use of advanced screw design technique and manufacturing process, we will provide excellent quality and reasonable price to customers.