... most all the sizes, for special sizes and types. Pu elastic couplings for most all the sizes and types!For special ... , T2/T3. BRT2/3Covered the most BUNA, FLUOROELASTOMER, SILICONE, EPR, NEOPRENE, TEFLON, POLYURETHANE, POLYMYTE MATERIALS.Only cooperate with the factories or ... the different type in different sizes.good quantity , better price. elastic coupling, Pu elastic couplings