... Rock-Drill Steel 钎子钢 rotary rock-drill 旋转钻石机 rock-drill dust exhauster 凿岩机干式捕尘器 ...
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Rock Drill Steel 凿岩钎钢 ; 钎头 ; 钎钢
Hollow rock drill steel 凿岩钎杆用中空钢 ; 中空钢
Even pace is a piece of rock, it would burst out sparks, as long as you pick up the hammer drill steel.
即使脚步下是一片岩石,它也会迸发出火花,只要你拿起铁锤钢钎。
In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
为了提高凿岩钎杆用中空钢的使用寿命,设计了奇数边截面形状的中空钢。
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