Mining Underground Support Split Set Friction Rock Bolt

Mining Underground Support Split Set Friction Rock Bolt. High Strength Steel Material: Made of Q235B, S355, and other high-grade steels for superior tensile and bending strength. ISO Certification: Certified ISO standard ensuring global compliance and quality assurance. Wide Diameter Range: Available in diameters from 33mm to 47mm to suit various geological conditions. Customizable Lengths: Lengths range from 1.2m to 3m to meet diverse construction project needs. Factory Direct Pricing: Direct wholesale prices from the factory, cheaper than trading companies. Small Order Acceptance: Minimum order quantity is 1 piece, welcoming small orders. Strict Quality Control: Each piece is checked by a dedicated quality control department. Versatile Applications: Ideal for mining, tunnel support, subway, and underground space reinforcement.