Proverbial highly sought | Yongnian day marked the advantages of plastic bag manufacturers _ [] Changchun roller drum is provided by day-standard fasteners. We are the days of standard fasteners, Ltd. Handan City (www.hdtbjgj.com) located at: Handan specializes in: roller, roller, roller frame, roller parts, conveyors, mining railway accessories Handan City days marked tight firmware, Ltd. mainly produces roller, supply electric drum, plastic drum to provide the latest package price quotes, including the use of electric drum price electric drum, the drum wholesalers, including plastic drum size, the role of electric drum, the drum plastic bag sales charts, etc. Drum information for businessmen to provide the most valuable information pack plastic drum. Roller material selection: galvanized steel, chrome steel, carbon steel, plastic wrap, aluminum, stainless steel, ABS and so on. Roller type selection: unpowered roller, single chain roller, roller duplexes, "O" with the roller, tapered roller, the roller groove. Roller fixation: spring loaded type, the tooth shaft, full flat tenon style, through the axle pin-hole. Handan City days standard fasteners, Ltd. mainly produces roller, supply electric drum, providing the latest offer price advantages bag plastic bag plastic drum rollers, including the price of electric drum, the drum wholesalers, including plastic drum specifications, electric drum role Shelf drum, drum sales charts and other information packet plastic drum roller to provide the most valuable information to the merchant drum plastic bag. Roundness tolerance barrel roll after a good skin should not exceed 0.5; 5) Material: Q235 steel, yield strength of 235 cow / square meter; For medium-sized drum set and light drum set, when the wheel hub diameter greater than 220mm, with steel For light drum set, when the hub diameter less than 220mm, the use of hot-rolled bar, should be consistent with national standards.