Silicone Sealing Ring: 1,Shipment: as customized 2,MOQ:5000pcs 3,Material: silicone 4,OEM & ODM warmly welcomed Silicone Sealing Ring:1,Performance: FDA grade, oil resistance, friction resistance, anti-aging and ozone, high and low temperature resistance etc 2,Toolings: more than 2 thousand toolings of o-rings, washers and gaskets 3,Color: free choice(black, white, green, red, brown, yellow, ...