... Ball Bearing) Pipe: Q235, S235JR Shaft:45# steel, C45 adjustable heavy duty belt conveyor rubber & steel roolers : Description:Bearing: HRB, SKF ... use the finest spring steel to produce and have sufficient toughness and rigidity.4.Shell,the shells are made by dedicated ... belt conveyors, screw conveyors, scraper conveyors, electric drums and polyurethane and FRP products. We are in possession of 9 series ...