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Diamond drill bits (PDC drill bits) Diamond composite drill bits are known as diamond drill bits. The drill is a one-piece drill, the whole drill has no moving parts, the structure is simple, and it has high strength, high wear resistance and impact...
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In order to solve the problem of short working time and long interval time of the digging machine, in order to increase the utilization rate of the machine, it is proposed to develop a multi-machine type digging machine. The sea mechanical...
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The drill bit that makes the cutting edge is called a diamond drill bit. The drill bit is an integrated drill bit. The entire drill bit has no moving parts. The structure is relatively simple, with high strength, high wear resistance and impact...
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The market volatility in the market is high, and the recent market is strong and volatile, but the opportunities for individual stocks are quite prominent. Many stocks have strengthened against the market and have risen tremendously in the short...