Since April 2018, we have produced Stellite 20 cobalt-based alloy valve balls for US companies with powder metallurgy and casting processes.
1.This order is divided into two batches due to the large number of quantities, which were delivered in April and August.
2.This order is made of Stellite-20 material and has 9 sizes:
3.We use the powder metallurgy process and casting process to make the valve balls. After rough machining, fine machining and fine grinding, the surface finish of the valve balls is mirro finish, Ra500 micro-inch, the dimensional tolerance is as per G100.The quality of our balls are recognized by US customers.
Eternal Bliss Alloy Casting & Forging Co, Ltd.