We Feilong Retop Rock Bit Manufacture Co.,Ltd,oriented bu market demand,supported by technological innovation,owning an experienced product R&D team,two fo which are professor level senior engineers,five senior engineers and three assistant engineers,has achived virtuous cycle from basic technologies research,application of new technology,product development,manufacturing study to products application services and improvement and made technical reserves as a strong support for product development and market technical service;meanwhile,we have introduced costly introduction of dosmestically advanced CNC lathes,machning centre and testing equipment,ensuring the stability of product quality and sustained reliable supply of products.
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