We are striving to be the first in the thread insert iso, counterbore, edge milling process industry with our unique advanced technology by adhering to integrity management and continuous innovation, so that users all over the world can feel the excellent quality we bring to them all the time.We want you to be 100% satisfied with our salt bath nitride. We will create value and win the future together with our customers and friends. We fully understand, identify and respect the laws and regulations of the country where the company operates, and build the company's development on the basis of correct ethics and values. We stimulate the work enthusiasm of employees, cultivate the teamwork spirit and form a cohesive synergy. A set of scientific management system, exquisite production technology and excellent manufacturing equipment have established the high standard of product quality of our company, which makes us develop in continuous improvement. We adhere to the concept of environmental protection first, quality first and people-oriented, and vigorously promote energy conservation and emission reduction. Our company integrates R&D, production and sales for science and technology, aiming to provide customers with the most cost-effective products, so that customers can enjoy the best production and the best service at the best price.
  • Nitriding Quenching Salt

    Nitriding Quenching Salt

    QPQ technology is a revolutionary new technology in the field of metallurgy. It permeates variety of metal elements to the surface in the two different nature of the bath which can improve wear...

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  • Molten Salt for Quenching

    Molten Salt for Quenching

    CTRI QPQ independently developed a unique salt bath formula in late 1980s after long time research and development.

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  • Nitriding Oxide Base Salt

    Nitriding Oxide Base Salt

    In recent years, CTRI made new progress. CTRI successfully developed second generation of QPQ technology and improved QPQ equipment, making it easier for customer operation, further reducing...

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  • Salt Quenching Steel Valve High Temperature

    Salt Quenching Steel Valve High Temperature

    According to the result of slid-wear testing, the wear resistance of medium carbon steel with QPQ treatment is 30 times than conventional quenching.

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  • Salt Quenching Steel Valve Low Temperature

    Salt Quenching Steel Valve Low Temperature

    In recent years, CTRI made new progress. CTRI successfully developed second generation of QPQ technology and improved QPQ equipment, making it easier for customer operation, further reducing...

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  • Heat Treatment Furnace

    Heat Treatment Furnace

    Provide detailed technical data, complete set of process documents, equipment drawings, complete sets of special equipment (a total of six series of specifications for selection), paid supplies...

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Jean Jablonski star star star star star
I am very satisfied with this product and it is trustworthy.
James Huerta star star star star star
Your workmanship is exquisite and we can feel from every stitch that you are very serious about this cooperation.
Jeremy Dyer star star star star star
Generally speaking, after the cooperation is completed, there is not much interaction between the buyer and the seller, but the company will still take the initiative to provide after-sales service
Stacy Apgar star star star star star
The after-sales service of this company is very good, online 24 hours a day and able to give us a lot of valuable advice.
Michael Leger star star star star star
In the process of cooperation, this company always pays attention to and meets our needs, listens to our suggestions, and strives to provide us with quality services.
George Holguin star star star star star
It is an honour to find such a reliable manufacturer in this industry! We also hope that our relationship will grow stronger and stronger!

Our company is committed to the 'one-stop procurement' service of part off inserts, cutting inserts, Special Profile Inserts. We're known as one of the most professional salt bath nitride manufacturers and suppliers in China. Please rest assured to buy high quality salt bath nitride at competitive price from our factory. Good service and punctual delivery are available.

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