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Anti-skid plastic nail for pavement - has ridged fixing pockets, concentric anti-skid ridges and attachment-feet
Anti-skid plastic nail for pavement - has ridged fixing pockets, concentric anti-skid ridges and attachment-feet
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机译:路面防滑塑料钉-具有隆起的固定袋,同心防滑隆起和固定脚
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摘要
The nail comprises a convex cap (1) in which are pockets (2) separated by alternately deep (3) and shallow (4) radial ridges, all joined by circular concentric ridges (5). The outside of the nail has half-round concentric ridges from the circumference to the centre and all have the same width. The central part of the plastic nail has a circular hump in which is inserted a steel fixture rod (11) and on which join all the ridges and the spherical cap. The rod has grooves and feet at its bottom end.
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