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Underground Mining Expansion Shell Rock Bolts

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October 24, 2025
Category Connection: Ancora de pós-tensão
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Tags:
#Âncora da cunha #Sistema de pós-tensão
Brief: Discover the Underground Mining Expansion Shell Rock Bolts, designed for securing single-sided shuttering in rock, concrete, or similar load-bearing ground. Made from cast iron and steel, these bolts are precision-machined for durability and reliability in underground mining applications. Learn more about their features and quality control.
Related Product Features:
  • Made from high-quality cast iron and steel for superior strength.
  • Available in customized colors to meet specific project requirements.
  • Precision machining ensures tight tolerances up to +/-0.01mm.
  • Surface treatments include polishing, powder coating, and zinc plating.
  • Ideal for underground mining applications due to robust construction.
  • 100% inspected for quality assurance and reliability.
  • Produced using forging, stamping, welding, and casting processes.
  • Versatile for use in rock, concrete, and other load-bearing ground.
Perguntas Frequentes:
  • Are you a trading company or manufacturer?
    We are a factory specializing in Expansion Shell with Trapezoidal Thread for DIA25mm bolts.
  • How long is your delivery time?
    Delivery time is 5-10 days for in-stock items and 15-20 days for out-of-stock items, depending on quantity.
  • Do you provide samples? Are they free or extra?
    Yes, we offer free samples, but the customer must cover the freight cost.
  • What are your payment terms?
    For payments <=1000USD, 100% in advance. For payments >=1000USD, 30% T/T in advance, with the balance paid before shipment.
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