凯时官方网站|登录

Quality Control in process

Home>SERVICE

Quality Control in process

Perfect Production Process: including banking, forging, pre-treatment, rough turning, fine turning, heat treatment and carburizing, quenching, tempering, double heat treatment, then storage.

123.jpg

Welcome to contact us Contact us →

leave a message

Copyright © 2010 CHANGSHA TIANHE DRILLING TOOLS AND MACHINERY CO.,LTD.