MOTORDRIVEN AND FRICTION ROLLERS FOR CONVEYING MARBLE .
for conveying marble and granite Steel rollers or with polyamide resin sectors driven by tangential chain or chain with links in jacket is composed of an austenitic stainless steel tube AISI 304 (on request, AISI 316, etc. .) with a constant thickness or cylindrical polyamide resin sectors reinforced with glass microspheres.