rubber suction cup 1.Quality certificate:ISO:9001:2000 , SGS 2.good quality, ... supply 3.open mould base on drawing Size rubber suction cup according to customers' drawingMaterialEPDM, NR, SBR, NBR, Neoprene, Silicone, etcDuro40~90 ... (silicone-any color)Metal Partstainless steel, zinc coated metal, etcTechnologymouldingRemarks: how to choose the material, every material has its advantage, EPDM-aging ...