hardness

Mica sheet can be composed of muscovite or phlogopite type. These are two types of mica that can be used in the field of industry. Musco...

Class 8.8 bolts are one of the most common structure of hex bolts in the market. they provide acceptable rate of strength and hardness si...

NSK thrust roller bearing رولبرینگ کف گرد that is produced following Japanese industrial standard is a very strong type of roller bearing...

High tensile ball bearing are high carbon steel ball bearings that also have abrasion resistance. these ball bearings are available in di...