Aircraft guide rail model

HXDL-50, SGR35, HXDL-40, etc. There are many kinds of guide rails for cranes, mainly including HXDL-50, SGR35 and HXDL-40. Traveling crane is a common name for cranes, traveling cranes, crown blocks, etc. Traveling crane is basically the same as what we call cranes. There are basically two driving modes: one is centralized driving, that is, a motor drives a long transmission shaft to drive the driving wheels on both sides; The second is separate driving, that is, the driving wheels on both sides are driven by a motor.