Yanshan County, meeting East conveying machinery professional production (slot shaped supporting roller, and parallel supporting roller, and adjustable heart supporting roller, and tapered supporting roller, and friction supporting roller, and reversible supporting roller, and rubber supporting roller, and stainless steel supporting roller, and aluminum supporting roller, and permanent magnet supporting roller, and polyurethane supporting roller, and nylon supporting roller, and buffer supporting roller, and hinged supporting roller, and stamping bearing block sealed ring, and bracket, and transmission drum, and tapped drum, and electric drum, and casting rubber drum, and funnel shield hosts large frame conveying with upgrade with upgrade bucket), conveying machine accessories. fixed type with type conveying machine, and moved type conveying machine, and telescopic conveying machine, and Screw conveyor, bucket elevator, tension, electric winch, buffer bed PEAR unloader, tipping hopper and conveyor accessories. My company specializes in the production of transportation machinery, models DT ΒΆΒΆ. TD75. DX-. QD80 stationary. Y45.DY mobile. DSP\ DSJ telescopic conveying machine. LS.DX spiral conveying machine. DTL with type conveying machine. unloading skip. unloading feeder. GB non-marked slot shaped supporting roller. parallel supporting roller. tapered adjustable heart supporting roller. friction adjustable heart supporting roller. return supporting roller. nylon supporting roll