俊友螺杆
Service Hotline: +86-0580-8042902   
 

Stands of injector cylinders and scerw
Material and the technical
Using hight-quality 38CRMOALA to adjust quality, determine the mature and nitrogenize, and spraying the hard mental
 
Various specifications of the single screws
Normal pattern,screen pattern, diffluent pattern screen pattern, diffluent pattern,shadow pattern breakthrough pattern, mixed refining pattern, flexuous pattern, dawel pattern, accelerated pattern, exhaust patternand detached pattern.

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