1. more than 20 years of experience 2. Cast Drum: Cast Iron Drum,Aluminium Drum 3. Got ISO9001-2008 certification. Brand Name: Roaring Lion, Qiaowang, OEM brandSize: 4 inches,6 inches,7 inches, 8 inches,10 inches,14 inches,20 inches, 25 inches, 28 inchesMaterial: SBR, NBR, POLYColor: Brown, White, AmberSpecification of Rubber rollersTypeWheel TypeType NoLGL-152Specifications (inch)6’Outside ...