확장 셸 록 볼트 어셈블리 왼쪽 손 스레드 사용자 정의

Video Description:
Discover the high-quality DIN Standard Expansion Shell Rock Bolt, designed for rock support in mining and tunneling. With a tensile strength of ≥500MPa and ultimate load capacity of ≥200kN, this bolt offers superior corrosion resistance and reliable performance in harsh environments. Customizable options available to meet your specific needs.
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