chinese裸体男野外gay,亚洲成色WWW成人网站,欧美va天堂va视频va在线,公交车上掀起JK裙子挺进去

Tungsten Alloy Oil Boring Tube

Tungsten alloy oil boring tube has high density, high hardness, high strength, good impact toughness, corrosion resistance and wear resistance. It is an important drilling equipment, mostly used in oil drilling and geological drilling.

More product details, please visit:
http://www.tungsten-alloy.com/tungsten-alloy-tube.html

tungsten alloy oil boring tube pictureThe conditions are extremely complicated due to the deep underground work of several kilometers underground. During work, it is subjected to stress such as tension, pressure, torsion and impact load. The tube wall is subject to wear by mud and rock particles, and the tube is required to have sufficient strength, hardness, wear resistance and impact toughness. Chinatungsten Online is a professional manufacturer and distributor of tungsten alloys. Tungsten alloy oil boring tube provided by the company have many excellent properties and can meet the requirements of drilling.

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright ? 1997 - 2025 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: sales@chinatungsten.com
舊版