Drill pipe Heavy weight drill pipe Special drilling tools Drill collar
Internal coating for drill pipe series Internal coating for casing and tubing
Self developed TC serial coating is capable of quickly responding to customers’ special needs, and provide high quality, differentiated coating service. Annual output is more than 6.5 million meters. We export 50% of products to more than 40 countries, providing high-end coating services to customers worldwide.
Scan and follow us沪ICP备14040674号-1
沪公网安备 31011302005992号 © 2018 HI LONG GROUP OF COMPANIES， All Rights ReservedPrivacy Policy
