... us Brand NamePlace of OriginStandardxinxinZhejiang China ( mainland)SGSAbout 316 stainless steel ball1Chemical composition C%Si %Mn %Cr %Ni %Mo ... magnetic rod ball, chemical ball, aviation ball, aerospace stainless steel ball: perfume bottle ball, sprayer ball valve, ball valve ... ball, mobile phone plate steel ball, the ball rings, earrings ball, tongue ring ball, massage chair ball, massager ball, ...