shandong tongrui mining techonolgy co., ltd.

http://indotrade.co/rockbolt

Main products are as following : Split set rock bolt( Friction bolt or stabilizer) , Cable bolt, Thread bar bolt, All thread rebar rock bolt, Self-drilling anchor, FRP ( GRP) rock bolt, other kinds of prestressed rock bolt, the rock bolt accessories ( W steel strap, butterfly plate, domed plate, star plate , coupling, drill bit, washer and so on ) and all kinds of steel.

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