Roba mai roba shine samfurin roba da aka yi da karfe ko wasu kayan kamar cibiya, an rufe shi da roba ta hanyar rashin yarda.
M rollers: Madalla da tsayayyawar wuta, juriya, buga ruwa, daɗaɗɗiya ozone acid -140 ℃ -140 ℃ -140 ℃ -140 ℃ -140 ℃ - kyau Aikin rufi, da aka yi amfani da shi a cikin injin buga filastik, kayan injunan su, filin-manufa filin.

EPDM: S501A; s505a; s555; J-2080; ter 4047; ter 4039; ter 4039;
Cr: sn121; sn122; sn123; cr111; cr232; cr231; cr231; cr232; cr212; cr212; cr212; cr232; cr313; cr33