How to judge the 1305 bearing failure A sound meter is used to check the size and sound quality of the rolling sound of the 1305 bearing in operation. Even if the bearing is slightly damaged such as peeling, abnormal and irregular sounds will be emit…
Castor oil and sulfuric acit is neutralized to make an anionic surfactant. This soap is more easily dispersed than normal soap in water. It has better acid resistance, hard-water resistance, and emulsification. Castor-oil sodium sulfate salt: Cast…
The U.S. CPI rose 1.2% month-on-month as expected in March, the highest since October 2005; this made the indicator up 8.5% year-on-year, higher than the expected 8.4%, and the highest since December 1981 (nearly 40 years).…
Hafnium-nitride, a grayish powder with cubic crystal structures, is available in a variety of sizes. The melting point is 3310. Microhardness is 16GPa. It's fairly stable but easy to corrode by concentrated sulfuric and hydrofluoric acids. Purity: 99…