... ratio 3.OEM&ODM: YES Product Description Item nameFlat o ring MaterialSilicone,,FKM,FPM,VITON A, VITON B, ... major rubber sealing elements manufacturer with combination of R&D,production and sales for more than 20 ... to your drawings & samples. Our main products contains O-type Loop, U-type Loop, Y-type Loop, ... us, thanks. Details Show practical silicone rubber flat o ring HNBR FKM FPM VITON A VITON B GF ...