belt conveyor roller 1.Standared:DIN,CEMA,AS,JIS 2.Size:89mm* ... has already acquired the attestation of ISO9001:2000 quality managing system, MA qualitymanaging and various honors.The above technical conditions ... 310 more than 5 mm219150-3500308 310more than 5 mmconveyor roller:1.Roller idlers Dia 63.5mm-219mm, length 150-3500mm, ... ,adjusting idler,vertical idler etc.Package mining belt conveyor roller