玩弄少妇秘书人妻系列,欧美人与动交视频在线观看,在线 国产 欧美 亚洲 天堂,高中女无套中出17P

【Know Tungsten】High Density Tungsten Alloy Ring

High density tungsten alloy ring has the advantages of corrosion resistance, high temperature resistance, high hardness, etc., and can be used stably for a long time in harsh environments. At the same time, high specific gravity tungsten alloy also has good processing performance, and can be made into different shapes and sizes by casting, sintering, processing, etc.

The tungsten content of high specific gravity tungsten alloy ring is generally 90%~97%, the density is 17g/cm3~18.5g/cm3, the size can be customized according to customer needs, and the minimum thickness of the ring can reach 2mm.

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