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Shandong Jinnai International Trade Co., Ltd.
products: steel ball, hollow steel ball, steel ball with hole, ball cage, half steel ball
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Stainless steel staring hollow ball rainbow color hollow 304 stainless steel ball hollow steel ball 3.2cm-40cm
DIN5401 chromium bearing steel ball metal steel ball solid 100Cr6 bearing steel ball 10/12/14/15/16/19/20mm