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About Us

E.J.S is specialized in producing, repair and rebuilding screws, barrels and components for plastic product manufacturers, rubber product manufacturers, extruder and injection molding producer.
With 25 years experience in serving our customer in plastics and rubber industry, we are aim to supply screws barrels with more wear resistance and corrosion resistance.
By providing a professional design and suitable steel & treatment according to the processing material type, grade and filler, we make our screws barrel a longer serving time.    
We produce all types and specifications of screw barrel for:
Single screw extrusion
Twin screw extrusion
Injection molding machine
Blowing molding machine
3D printers
Our factory, is located in Jin Tang, Zhoushan, was established in year 1992. Through years of growing, now it covers a plant area of 1400m2, with more than 300 plant workers and 160 machines serving our high-efficient production. 
To keep up the pace of this industry developing, every year we invest a large proportion in our equipment and technical. 
The Export department moved to downtown Ningbo and became a Golden Supplier on Alibaba in year 2012. 
Ningbo is a port city which is close to Shanghai. It is convenient for customers visiting and for us to arrange the export shipment. 
Our sales people offer any easy way to buy from China. They give fast response to customer’s request. All of your emails will be replied within 24 hours. Our quality services satisfy our customers from Europe, America, India, Middle East etc. 
Our technical department created CAD drawings from sample components or customer’s original drawings. If the material formula is updated or the capacity of machine needs to be improved, our engineers will help to improve the design and troubleshooting for your screws barrels.  
The CNC grinding machines ensure the precision dimensions of our products. 
Our comprehensive quality control procedures ensure that all screws and barrels are checked at every operation. Before dispatch, all screws barrels and other components need to be checked with the surface treatment, hardness and every dimension, with a final inspection report being issued and provided to our customers.     

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