rɔba a ɛyɛ tubular a wɔde di dwuma de fa gas, nsu, nsu a ɛyɛ fĩ anaasɛ granular nneɛma. Ɛyɛ nea ɛwɔ mu ne akyi rɔba a ɛwɔ soro ne nnompe a ɛwɔ nnompe no mu, na nea ɛyɛ nnompe no betumi ayɛ cotton fiber, fiber ahorow a wɔayɛ, carbon fiber anaasɛ asbestos, dade hama, ne nea ɛkeka ho. Wɔde neoprene ne nitrile rɔba na ɛyɛ hose a ɛko tia ngo; Wɔde ethylene propylene rɔba, fluorine rɔba anaa silicone rɔba, ne nea ɛkeka ho na ɛyɛ hose a ɛyɛ acid- ne alkali, a ɛko tia ɔhyew kɛse, ne nea ɛkeka ho

kamfo kyerɛ sɛ: EPDM:S512F;S5890F;S552-1;S6090WF;J-30608008008080808080808080808080808080080080080080080080080. 4038Ep; Ter 4039 na ɛwɔ hɔ; Ter 4047; Ter 4049;
Cr: sn121;sn122;sn123;cr111;cr112;sn231;sn232;sn233;sn238;sn239;cr211;cr212;cr213;sn322;sn3233;