1.The bimetallic barrel is casted with a layer of 2~3mm wear-resisting,anti-corrosion and heat-resisting alloy on the inner-wall,which has a longer service life compared to common nitrided barrel.Bimetallic has an obvious advantage in processing of engineering plastics,fluoro plastics,polysulfone,PPO special plastics,etc.

2.Our bimetallic single screws are sprayed with special alloy powder on the arrises.Screws with different functions are made of different alloys and with different welding methods.

1.The bimetallic twin barrel is sprayed with a layer of 1-3mm wear-resisting,anti-corrosion and heat-resisting alloy on the inner-wall,which has a longer service life compared to common nitrided barrel.Bimetallic has an advantage in processing ingredient with high PVC calcium powder and prolonging service life.

2.Our bimetallic twin screws are sprayed with special alloy powder on the arrises.Screws with different functions are made of different alloys and with different welding methods.