Which are the Popular Types of Scrap Plastics That go in Recycling
It is widely used in the construction of the projects e. G. Prospecting, railway, road, port, bridge, water conservancy and hydropower, well, industrial and civil construction, geological exploration, especially used in mining wireline diamond core drilling and inclined hole wireline core drilling, etc.
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The mast (derrick) type is generally classified as A type, K type, tower type and mast type etc.
A type mast, its leg section is rectangular or triangle shape, with better loading capacity and stability,connected with pins between sections, installed at low level and erected or lowered down integrally by drawworks and A-frame.
K type mast, namely front opening mast, its transverse section is a shape truss structure, its both sides are composed of several pieces or segments, its back is rigid frame or pole system of truss, connected with pins or bolts between segments and members, may be installed at low level and erected or lowered down integrally by drawworks or hydraulic cylinder, has the advantages of convenient installation and teardown, excellent rigidity.