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The drilling rod is made of high-quality materials, and the heat treatment of materials is treated with integrated multi-function. All thread is processed with professional CNC machining, and it is configured in line with international standards of thread gauge, so the drill pipe quality is stable, reliable, and the service life is greatly lengthened.
1. Entire length heat treatment rod
2. Screw thread heat treatment rod.
3. Hard chromed on the pin end
4. OEM products
5. Various sizes are available
6. Over 500 professional employees including more than 50 technical professionals to guarantee high-quality products.