In condition of serious deformation due to high ground stress, it is impossible to support the surrounding rock by normal anchor bar, with the anchor bar being damaged ahead of time, which greatly ...
we can produce all kinds of screws
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DIN**5 DIN**2 nylon lock nut
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HEX HEAD SERIES
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SELF-TAPPING SCREWS AND WOOD SCREWS
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socket cap screws
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SET SCREWS
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Blind Rivets
Main Materials:
aluminum rivet with steel mandrel.
Blind rivets is a kind of rivet with one-side riveting, but must use a special tool to rivet gun riveting - pull.
Chipboard screws
Lenth:*****0mm
Diameter:2.**6.0mm
Finish:yellow zinc, white zinc, black oxide, plain.
Head type: Countersunk head or Flat head, Pan head., Oval head