... diameter Maximal 530mm2. Color: black, white, yellow, brown, green, blue, transparent, red, natural etc.3. Hardness (Shore A) :30 ... /TS16949Machines(20sets)Rubber mixer, Automatic slitting machine, Slicer, Flash device, molding equpment etc.Rubber Mouldingover 2000 setsWorker 150Staff25QC5Main ... daysMore information Please feel free contact with us Blue color soft silicone o ring