petroleum drilling tools...

We understand the worth of Spiral Drill Collar that only look great but also feature a comfort that is a major requirement of almost every costumer. To serve them all and meet their diverse needs our ...

Mudanjiang Heilongjiang

Tianhe Petroleum Machinery Co., Ltd is a modinized medium-scale enterprice specialied in production of oil and gas tools. Established in 1973, it has been a standardized co., Itd. Our company has regi...

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