PRO METAL & PLASTIC PRODUCTS CO., LTD.
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We inject aluminum alloy and zinc alloy , meet the international standards ISO、ASTM、DIN、BS, the capacity of our injection machine grows from 30 tons to 1000 tons.
The alloys meet different standards, and we highlight our further machining work and surface treatment in good quality and competitive pricing.
Aluminum die cast molding
Aluminum alloy & international standards could be met as below:
Japanese:ADC10、ADC12、AC3A、AC2B
USA:A380、A380.1、A360
Germany:AlSi12
UK:LM24、LM12
Chinese:ZLD101、ZLD102、ZLD104
Zinc die cast molding
Zinc alloy of Zamak 2, Zamak 3, Zamak 5, Zamak 7, Zamak 8, Zamak 12, Zamak 27, ZSG-3, the above and other zinc alloy composition catering to customer's requirement.
Normal zinc alloy chemical composition:
| Alloy | Al | Cu | Mg | Fe | Pb | Cd | Sn | Zn |
| Zamak-2 | 3.9-4.3 | 2.7-3.3 | 0.035-0.06 | 0.02 max | 0.003 max | 0.003 max | 0.001 max | Spare |
| Zamak-3 | 3.9-4.3 | 0.015-0.03 | 0.02-0.06 | 0.015 max | 0.005 max | 0.003 max | 0.001 max | Spare |
| Zamak-5 | 3.9-4.3 | 0.075-1.25 | 0.03-0.08 | 0.1 max | 0.007 max | 0.003 max | 0.001 max | Spare |
| Zamak-7 | 3.9-4.3 | 0.01-0.02 | 0.01-0.02 | 0.075 max | 0.002 max | 0.002 max | 0.001 max | Spare |
| ZSG-3 | 3.5-4.3 | 0.5 max | 0.02-0.06 | 0.1 max | 0.015 max | 0.004 max | 0.003 max | Spare |
Further machining work
As per customer's drawing specification we apply further machining and/or precision CNC machining work onto our die cast parts to get the parts entirely in conformity with the drawing specifications.
The following is our normal applied machining work:
* Turning and cutting
* Milling
* Grinding
* Drilling and Reaming
* Threading