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Wangchen road ,Luolong district ,,Luoyang,Henan,China China
Hollow bar self-drilling anchor is a bolting solution for unstable ground conditions such as sand, gravel, silt and clays, and for soft to medium frac
1 hot rolled thread bar 2 diameter:16-25mm 3 MG500, MG450, MG335 thread bar are optional. 4 high tensile strength, yield strength, and elongation
1 friction rock bolt 2 made of high-tensile alloy steel plate 3 big friction between bolt and rock 4 the height of tunnel must be larger than the b
1 prestressed hollow anchor bolt 2 steel shell-expansion anchor head 3 diameter:25/28/32mm, special size can be customized 4 designed for hard rock
specification GY25 GY28 GY32 external diameter (mm) 25 28 32 Breaking load(KN) 150-180 180-220 220-250 Interior diameter (mm) 15 17 22 drilling
GY FRProck boltisanexcellentchoiceforanchoringinhighgascontentareasuchasthecoalmine, due&n...
الشخص الذي يمكن الاتصال به Mr. Alex Yan
عنوان Wangchen road ,Luolong district ,, Luoyang, Henan
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