... in steel pipe conveying, which includes straight transmission and screw-type transmission. Controlled by PLC,this line is used to ... . There are several types: sliding type, seesaw-type, M-type and new sliding type.1. Basic Slide Type Transmission Line:Features: The basic sliding ... distance when somewheels are badly abraded, and this M-type is not suitable for largebore steel pipe anticorrosion, so ...