Thee main products are: all kinds of diamond drill bits, PDC bits, casing boots, reaming, single and double tube wireline coring drilling, coring drill pipe, casing and other drilling tools.
主要产品有：各类金刚石钻头、复合片钻头、套管靴子、扩孔器、单双管绳索取芯钻具、绳索取芯钻杆、套管及其它钻探工具。
Conventional double tube bits should be used as bits for drilling, while coring tool is double tube.
当取心钻具采用双层管时，钻进所用的钻头就需要用普通双管钻头。
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