Kelasi ya biloko ya caoutchouc tubulaire oyo esalelamaka mpo na komema gaz, liquide, stérile to biloko ya granulaire. Ezali na couche ya caoutchouc ya kati mpe ya libanda mpe couche ya mikuwa, mpe matériel ya couche ya mikuwa ekoki kozala fibre ya coton, fibre synthétique ndenge na ndenge, fibre de carbone to amiante, fil ya bibende, etc. En général, couche ya caoutchouc ya kati mpe ya libanda ya tuyau esalemi na caoutchouc naturel, caoutchouc styrène-butadiène to caoutchouc butadiène; tuyau oyo ekoki kokɔta na mafuta te esalemi na caoutchouc néoprène mpe nitrile; Tuyau oyo ekoki kozala na acide mpe alcali, oyo ekoki kozala na molunge makasi, esalemi na caoutchouc éthylène propylène, caoutchouc fluor to caoutchouc silicone, etc.

EPDM:S512F;S5890F;S552;S552-1;S6090WF;J-3060P;J-3080;J-3080P;J-3092E;TER 4038EP; TER 4039, mpe TER 4039; TER 4047, oyo ezali na kati; TER 4049, mpe TER 4049;
CR: SN121;SN122;SN123;CR111;CR112;SN231;SN232;SN233;SN238;SN239;CR211;CR212;CR213;SN321;SN322;SN323;