锥形连接的钻杆|沙特标准|SASO-ISO-1718
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锥形连接的钻杆|沙特标准|SASO-ISO-1718
SASO-ISO-1718
Rock drilling equipment - Drill rods with tapered connection for percussive drilling
凿岩设备-锥形连接的钻杆,用于冲击钻
SASO-ISO-1718
Rock drilling equipment - Drill rods with tapered connection for percussive drilling
凿岩设备-锥形连接的钻杆,用于冲击钻
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