My company specializes in the production of transportation machinery, type scraper conveyor. Upgrade machine, and unloading skip. unloading feeder. GB non-standard slot shaped supporting roll. parallel supporting roll. Cone adjustable heart supporting roll. friction adjustable heart supporting roll. return supporting roll. nylon supporting roll. stainless steel supporting roll. rubber supporting roll. articulated supporting roll. bracket pillar. stamping bearing seat. seal pieces. rubber ring. package rubber drum. drive drum. bend drum. electric drum. inverse check device. lianzhou device. run partial switch. pull rope switch. head frame tail frame. middle frame support leg. Hopper guard. host large frame transportation with. upgrade with. upgrade bucket. Tapered pipe. tee. first class fittings. Low prices in stock./p>