parallel screw and barrel
| Type of posting | Offer |
| Category | Other Welding & Soldering Supplies |
| City / Port | Beijing, CN, China |
| Description | parallel screw and barrel Depth of nitration layer: 0.5-0.8mm Hardness of nitration:950-1020HV Fragility of nitration: less than grade 1 Surface roughness: Ra 0.4um Streightness of screw: 0.015 mm Surface hardness of nitrated Cr coating layer ≥950Hv The thickness of Cr coating layer: 0.3-0.08mm Hardness of alloy plating : HRC55-620 Depth of alloys layer: 2mm Used for producing PA, EVOH, EAA,PC etc. We can produce all kinds of screws and barrels according to your requires! |
| Date | 2009 Dec 12, 04:12 |