MS9J150 technical features: 1, using the main vice box design, the main deputy control, deputy tank gas control. 2, the main and auxiliary box are twin countershaft transmission, spindle and auxiliary box floating gear. 3, the use of dual H control device, can be single, double lever manipulation or manipulation of the left and right. MS6T75HF technical features: 1, odometer ratio: 19/6. 2, with reverse switch. 3, with the force of the device. The technical features of MS8J85: 1, the auxiliary box design, ratio of the difference is small. 2, spindle and gear floating installation, high transmission power. 3, the use of a single H control device, gear clear, flexible shift.