D, D metal roof beam specifications D long beam D metal roof beam D cross-shaped roof beam D double wedge roof beam D hinged roof beam D-shaped metal roof beam
D metal roof beam model D, D
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Cross-shaped metal roof beam model D* (,,,,)
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Double wedge top beam model D
D metal top beam model
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D metal roof beam: D/ D/ D/ D/
D long roof beam is used to form a metal support with a single hydraulic prop for gently sloping and medium-thick coal seams in coal mines. D-type roof beams for mining working face support can cantilever support the working face roof with long span, and can achieve a larger working space without pillar support on the working face. Therefore, in order to improve working conditions and adopt new coal mining machinery and bending Transport aircraft create favorable conditions.
The model number of D-shaped roof beam in coal mine procurement is
Parameters
Specifications:
Material:
Length: -
Width:
Height ：
Thickness:
Weight: ./
Beam load-bearing capacity:
Quenching and tempering hardness:
Features:
The D-shaped top beam is made of # Made of butt-welded steel
The weld is on the center surface of the beam body, so it is not easy to cause weld cracking
It is made of #-shaped steel butt-welded, so it is not easy to cause distortion and damage
It can be used during use Self-straightening and maintenance by using mine pressure are convenient
D-shaped beams have large load-bearing capacity and can be used to press large working surfaces in cycles
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double wedge roof beam D */Cross type roof beam D*/Cross type roof beam
Metal metal roof beam. Meter handover roof beam Shandong roof beam Jining roof beam
. Meter long row beam type roof beam
Cross type metal Long row of roof beams, long metal beams
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Jining Guolong DJC and DFC metal roof beams have complete specifications