Stainless steel 1-pc/2-pc/3-pc Ball Valves, We have Light Weight, Middle Weight, Heavy Weight.
DIN Standard, Thread Type: BSPT.NPT
PN16, PN25, PN40
1. Do the product mold, wax mold processing.
2. The combination type wax.
3. To set a good wax mucilage, 4-5 times
4. Dry processing.
5. In the heart of the dewaxing kettle wax processing.
6. In the high-temperature furnace roasting.
7. The key casting operations.
8. The product grinding.
9. The product cut apart.
10. for blasting processing.
11. CNC machining thread
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