Purchase Qty. Reference FOB Price
1-999 Meters US$25.00
1,000+ Meters US$20.00
Product Description
Our coupling sleeve are produced with high quality alloy steels and highprecision CNC machines to keep the steel mechanical properties and improve the thread life. LUOYANG GUANGTUO ROCK DRILLING GROUP, it was founded in 2010, located in Yiyang county, Luoyang city,Henan province,specializing in ...