He aha nā mea nui o nā casters? He aha nā mea nui o nā casters? Polyurethane, ka hao a me ke kila kila, ka huila nitrile (NBR), ka huila nitrile, ka huila huila maoli, ka huila silicone fluororubber, ka huila chloroprene, ka huila butyl, ka huila silicone (SILICOME), ka huila EPDM...
Heluhelu hou aku