Round hollow-steel Drill rod produce
Negotiable /Kilogram
Min.Order:1 Kilogram
Shandong Tuoshan Mining Machinery Equipment Co., Ltd.
Leading and the most professional manufacture of drill steel,with more than 15 years of experience.fully integrated production-from steel smelt to the finished product-give us total control of the entire chain manufacturing processes.
Which established British-LRQA ISO9001 and ISO14001 requirements.