pipe bends. And while elbows have sharp corners, bends never do. The most basic different between a bend and an elbow is the radius of curvature. Bends have a radius more than twice the diameter, and elbows have a radius of curvature between one and two times the size of the pipe’s ...
;SOLUTION: In the large-diametral gravel separator for the tunnel boring machine separating large-diameter gravel contained in soil and sand taken into a chamber for the tunnel boring machine from a face excavated by a cutter, one and sections of length-adjustable hangers 5 are installed rotata...