
Qingdao preco imp. & exp. co., ltd. is an excellent resource for budget, schedule, and quality. We have a wealth of experience and resources to meet the most stringent specifications of vernier ruler. reduced shank drills series manufactured by PRECO include multiple types. And the products shown below belong to this type. The product has a smooth surface. Honed or polished under advanced machines, it achieves a beautiful surface without any burrs or defections. Under the quenching treatment, its hardness and toughness have been enhanced. The product only needs little cost to run. People are able to lower their utility bill in the long run. It is processed in strict accordance with relevant industry standards and is up to the national quality control standards.
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