Application of diamond drill bits in masonry engineering home and abroad is presented.

本文介绍了金刚石钻头在国内外建筑工程中的应用情况。

youdao

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。

youdao

It had a tidy business in early 1997 selling coin-size diamond-embedded inserts that fit into larger drill bits used to dig oil and gas wells.

FORBES: Money & Investing