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一种用于改善在坚硬岩层中钻进性能的新型“DIABORIT”孕镶采矿钻头已由CRAELIVS公司推销出来。这种KS型和KM型的新型钻头是CRAELIUS公司在英国的DAVENTRY钻头厂专门为供应欧洲和澳大利亚市场而制造的。该钻头厂
A new “DIABORIT” impregnated mining bit for improving drilling performance in hard formations has been marketed by CRAELIVS. The new KS and KM drill bits are manufactured by CRAELIUS ’DAVENTRY drill in the UK specifically for the European and Australian markets. The drill factory