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Metal Roof Beam is also called metallic roof beams, one kind of articulated roof beams, can be used with all types of hydraulic prop with the composition of the metal-metal stents for the horizontal and gently inclined mine stope support of a kind of high strength roof beams, roof beams can be because of this cantilever supporting face, coal transport road above the wall in front of the roof, walls and pillars of coal have greater support among space
Parameter：
Model
|
length(mm)
|
Each time
number
|
load capacity (KN )
|
angle of the allowable (°)
|
Weight(kg/m)
| ||
body
|
Articulated part
|
Up and down
|
Left and right
| ||||
DJB-800/420
|
800
|
1-2
|
420
|
170
|
≥7°
|
≥3°
|
22.88
|
DJB-1000/300
|
1000
|
1-2
|
300
|
170
|
≥7°
|
≥3°
|
26.90
|
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