About Us

• Zhoushan Sitong Plastic Machinery Co., Ltd. is a company that specializes in producing precision screws and glue tubes. ZHOUSHAN SITONG PLASTIC MACHINERY CO., LTD. has strong technical force and advanced processing techniques. Our company has passed the evaluation of ISO9001:2000 quality certification. We own a full range of production lines and complete testing devices. The materials of our products are chosen from superior alloy steel (38CRMOALA) and precisely produced with the technology of slack quench. They have characteristics of accuracy and abrasion resistance. So they are the ideal assorted products of injection molding machines, extruding machines and rubber machines.