material:stainless steel sus 304/316 surface finish:stain finish and mirror finish stainless steel spider fitting dimension(between each two hole centers of the spider arms):300mm,250mm,220mm,210mm,210mm,204mm,200,150mm spider1. ISO 9001-2000 certificated 2. Small order accepted 3. Reasonable price 4. OEM service provided Welcome to visit our factory! we can supply all kinds of products according to the customers' drawings and samples!