Availale models: 1) Komatsu: 175G-78-31230, 195N-78-21331, 202-70-12130, 202-70-12130, 202-70-12140, 202-70-63190, 203-70-43180 (D85), D155 2) Hitachi: EX40, EX60, EX150, EX100M, EX100, EX120, EX150, EX200-1-2-3, EX300-1-3-5, EX400, UH08, UH07 3) Caterpillar: E110B, E200B (E320), E240 (MS180), E300B, E330, D3C,D4, D5, D5B, D5D, D6C, D6D, D6H, D7G, D8K 4) Daewoo: DH220, DH280, R200, R210 5) Kato: HD250, HD400 (HD450), HD500, HD550, HD700 (HD770), HD800, HD820, HD850, DH880, HD1020, HD1220 (HD1250), HD1430, DH1880 6) Kobelco: SK07N2, SK07-7SK200, SK220, SK300, SK320 7) Sumitomo: SH120, SH200, SH280, SH300, SH400 8) Mitsubishi: MS110, MS120, MS180 9) Samsung: SE55, SE210 Boyi Shanghai Ltd. is a professional mechanical excavator production of the chassis manufacturers: Four area: Supporting roller guide wheel, supporting wheels, the driving wheel, Track Links. Excavators accessories: Supporting wheels accessories, guide wheel accessories; Accessories, supporting wheels screwdriver, chain plate screws, screw driving gear, fighting shaft bolt, chain Xiao, up sprocket accessories, fighting tooth Xiao, fighting shaft. Dou pin, chain - (belly-)accessories chain films, Bush, Kumaratunga head, card sets. Products with forging, precision casting, processing, welding, heat treatment, and other professional production processes and won market and peer recognition and reputation. Products applicable to Komatsu, Hitachi, Carter, Sumitomo, God Steel, Hyundai, Kubota, Takeuchi, plus Proton, and other excavators.