Weihai Hardrock Engineering Co.,Ltd(China)

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共4 笔产品

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1. Drill Bit

Cast cross bit, steel cross bit, TC cross bit

Steel button bit, TC button bit

Steel arched bit, TC arched bit

Steel 3 cutter bit

Various shapes of bits for various rock formations will be available according to customers requirements. ...

2. PC Steel Strand

Low relaxation prestressed concrete steel strand

Structure: 1*3, 1*7

Diameters: 5.2mm-17.8mm

Standards: ASTMA416, BS5896: 1980 or according to customers' requirements

Packing: Export anti-rust packing with vapors corrosion inhibiting ...

3. Fiberglass Rock Bolt

A. Good safety property: No sparks out of direct cutting. It's convenient for the extraction operation, and can improve the coal output and safety property.
B. High tensile strength: Tensile strength of the bar can reach 850Mpa, and every ...

4. Self Drilling Rock Anchor

Self-drilling rock bolt, matched with good fittings, is made of seamless steel pipe with thick wall. In addition, surface thread-shaping techology is taken. With a bit at the anchor head, it is easy to cut through various rocks. With the continous ...