In well-drilling project, corrosion of drillsteel and pipeline is ubiquitous phenomena.
油田钻具和管道系统腐蚀是油田工程中普遍存在的问题。
2
Even pace is a piece of rock, it would burst out sparks, as long as you pick up the hammer drillsteel.
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。
3
Series produced by the tool are: woodworking cutter, alloy discharge drilling, drillsteel front, the fork blade, back blade, vertical knife, circular saw blades, etc.