Dosbarth o gynhyrchion rwber tiwbaidd a ddefnyddir i gludo nwy, hylif, slyri neu ddeunyddiau gronynnog. It is composed of inner and outer rubber layer and skeleton layer, and the material of skeleton layer can be cotton fiber, various synthetic fiber, carbon fiber or asbestos, steel wire, etc. Generally, the inner and outer rubber layer of the hose is made of natural rubber, styrene-butadiene rubber or butadiene rubber; Mae pibell sy'n gwrthsefyll olew wedi'i gwneud o rwber neoprene a nitrile; Mae pibell sy'n gwrthsefyll asid ac alcali, sy'n gwrthsefyll tymheredd uchel, wedi'i gwneud o rwber propylen ethylen, rwber fflworin neu rwber silicon, ac ati.

Argymell: EPDM: S512F; S5890F; S552; S552-1; ter30p; J-430p; J-4060p; J-4060p; J-430P 4038ep; Ter 4039; Ter 4047; Ter 4049;
CR: SN121; SN122; SN123; CR111; CR112; SN231; SN232; SN233; SN238; SN239; CR211; CR212; CR213; SN321; SN322; SN322; SN323;