Adopting advanced dry sand negative pressure casting process, using large tonnage automatic reverberatory furnace for manual aging treatment, and surface strengthening treatment by trolley shot blasting cleaner can make the products all expose metallic luster, especially the steel claw parts, which can be directly used without cleaning, thus saving time and labor for users. Cost saving.

Technical requirements:
1. Material according to user's needs;
2. Auto-controlled aging treatment for Castings
3. Smooth surface, tightly organized interior, no defects such as sand holes, slag inclusion, cracks, pore, shrinkage, etc.
4.Steel Claw Size Provides Drawing Production According to Demand
Standards adopted:
1. GB/T11352-1989 Cast Carbon Steel for General Engineering
2. GB/T5613-1995 Cast Steel Brand Representation Method
3.GB/T6414-1999 Dimensional Tolerance and Machining Allowance of Castings
4. In the control of chemical composition, we implement our company's internal control enterprise standard, that is,S≤0.03%,P≤0.035%, harmful elements < 0.7%, which is stricter than GB/T11352-89.
Henan Chinalco strict production requirements, excellence, worthy of your trust.