prestressed rock bolts, prestressed rock bolts
Anchor Bolts Bolt Astm A325 Bolt Price JM Brand ASTM A325 M10 M16 M24 M25 M30 M36 Stainless Steel Anchor Bolts F1554 J L Type Bolts M12 Concrete Chemical Anchor Bolt. ... SINOROCK tunnel and mining prestressed expansion shell rock bolt. US 2.00-9.00 Meter. 100.0 Meters (Min. Order) CN Luoyang Sinorock Engineering Material Co., Ltd. 9 YRS ...
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