Amashubhu ama-pneumatic abalulekile ezinhlelweni ezahlukahlukene zezimboni, nasePolyurethane (PU) Amashubhu e-pneumatic aphawuleka kakhulu ngezakhiwo zawo ezihlukile. Emikhakheni yensimbi namandla, lapho ukuthuthwa okuthembekile nokusebenza kahle kwezinto kubalulekile, Amashubhu e-PU anikela ngezinzuzo eziningi ezithuthukisa kakhulu ukuhamba komsebenzi nokukhiqiza. Amashubhu we-PU e-pneumatic ayaziwa