... : 32 sizes, total 407 pcs, AS568 standard4) Color of o ring : black5) Color of box : red,blue,yellow,greenCatalogue Details : Model No ... 32 sizes, total 407 pcs, AS568 standard Color of o ring black Color of box red,blue,yellow,green2. We have below O ... products,committed to becoming the field leader of precision rubber products and world supplier of various special rubber products.If you like ...