glass spider 1)Material:stainless steel or mirror polished 2)Finish:satin or mirror polished 3)Size:as customers' request As manufaturer of investment castings,we adopt lost-wax process with stainless steel,cabon steel and all kinds of alloy steel,etc. Our mainly products are construction hardware,marine hardware,machine parts,valve bodies and parts,impellers,etc. Our products are of high quality with reasonable price.Should any product be of your interest,please contact us,we would try our best to meet your demand.