Amtech Steel Ball Factory located in China Steel Ball Base, Ningyang Shandong China. Our factory mainly produce carbon steel balls(1015, 1045, 1085), we also produce stainless steel balls (440C, 304, 316L, 420, 430), bearing steel balls (GCR15), copper balls, glass balls, titanium balls, flying saucer balls, polishing balls and other kinds of hard alloy balls. The diameter from 1.0mm to 25.4mm. Their grade of accuracy is G10-G1000. The steel balls are applied to bearings, stainless steel bearings, hardware, wheels, instruments, rail, polishing, the solid smash.
We produce according to the GB308-2002 standard and measure up to the international standard of ISO3290-1998, AFMBA1989 and DIN5401-93.
We have the advanced production equipment and consummative instrumentation. We use perfect equipments to detect the roundness, libration size and the quality of the surface of the steel balls.