Heli Machinery Manufacturing Co., Ltd. dia naorina tamin'ny taona 2000 ary orinasa teknolojia tena mamorona.Ny orinasa lehibe indrindra dia mirakitra ny excavators sy ny bulldozer undercarriage faritra, anisan'izany ny track roller, carrier-roller, sprocket, idler, track chain asy, track kiraro, siny shafts, gears, rojo rohy, rojo rohy, fehin-kibo Screws sns.