zhejiang shangyu yuanyuan steel ball co.ltd mainly produce china
steel ball,stainless steel balls(440C,304,316L,420,430), carbon
steel balls(1015,1045,1085), bearing steel balls(GCR15),copper
balls, glass balls, titanium balls, flying saucer balls, polishing
balls and other kinds of hard alloy balls.it is widely applied in
the hardware goods which form a complete set for the aviation and
spaceflight industry, automobile trade, sprayer, stainless steel
bearing, handicraft and precision instrument.