Chain Knife Trenching and Pipe-laying Machine:
The digging part is a chain with blades,
which can excavate a rectangular，
trench and transport，
the soil to one or both ，
sides of the trench through 。
screw conveyor or belt conveyor.
Chain blade type trenching and ，
pipelaying machine has simple structure,
easy adjustment of trench，
depth and trench width,
