特级做a爱片毛片免费看_变态 另类 国产 亚洲_中文字幕乱码视频中文字幕14_中文亚洲少妇自拍_无码国产天天一区在线观看_美女在线777在线_美女做爰高潮免费视频_伊人久久久A∨老熟妇色_韩国电影办公室3免费完整版_自拍偷亚洲精品重口

Tungsten Carbide Mining Buttons

Made from high-purity tungsten carbide and premium cobalt, tungsten carbide mining buttons offer a hardness of HRA 88–93. The spherical structure optimizes stress distribution, significantly enhancing service life under high-impact conditions. They are suitable for high-speed, high-pressure rock drilling operations. Common applications include drill bits, cutting picks, anchor rod bits, and tunnel boring machines (TBMs), where they deliver excellent impact resistance and cutting performance.

 

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