High quality Alloy screw and barrel/Bimetallic screw and barrel
- Brand: JINMAO
- Packaging: wooden case
- Model No.: b3
- Place of Origin: Zhejiang, China (Mainland)
High quality Alloy screw and barrel/Bimetallic screw and barrel Bimetallic screw: Base material 38CrMoAlA, sprayed alloy powder on the screw flight, prolong life of screw. Bimetallic barrel: Base material 40Cr, casted a 2-5mm wear resistant and corrosion resistant bimetallic layer on the barrel inner wall, so it has...
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