ROLLER SKATES AS; HEAVY DUTY LOAD ROLLER; MODEL: GR.5 AS-H-50CRV4; H: THE CENTRE PLATE IS HARDENED AND GROUND; 50CRV4: THE CHAIN ROLLERS CONSIST OF STEEL 50CRV4 – B.S 735A: SAE 6150; , MAXIMUM LOAD: 850KN; MAXIMUM SIDE LOAD PER GUIDE ROLLER: 100KN; WEIGHT: 93KG; LENGTH: 530MM; WIDTH: 300MM; HEIGHT: 165MM; ROLLER DIAMETER: 50MM; NUMBER OF ROLLERS: 17; APPLY SIEMENS SAG MOTOR , MODEL: 1DN 8743-8XA 44-Z; SAG MOTOR SERIAL NUMBER: D 05 501 026 01; MANUFACTURER: MEILI HEBEZONE;