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12pcs 42.3 X 5.3 42.3*5.3 43.7x5.3 43.7*5.3 45x5.3 45*5.3 (id*ضخامت) درجه مواد غذایی قرمز روغن سیلیکون مهر O Ring, O-ring Gasket خرید / مکانیکی سخت افزار ~ Memari.news
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30pcs 42.3x5.3 42.3*5.3 43.7x5.3 43.7*5.3 45x5.3 45*5.3 ID*Thickness Black NBR Nitrile Chemigum Rubber Seal O Ring O Ring Gasket|ring gasket|o ring gasketseal ring gasket - AliExpress