Tungsten Carbide Planer Knives Our blade part is brazed tungsten carbide, the finished blade part size can ensure 10x1mm, The material is high hardness (HRA88~90) and virginal fine particles of tungsten carbide. Our factory accumulate rich experince for welding, the finished product is seamless, without overflowing, relieving of internal stress, then processed with precise grinding machine. They are good working for a variety of hard woods. With the features of good red hardness, less than 400mm length Wood Planer Knives edge straightness error < 0.05mm. Besides, they are strong resistance to abrasion, sharp blade, smooth planed surface, no distortion and no crack. Tungsten Carbide Planer Knives,Tungsten Carbide Planer Blades,Tungsten Planer Blades,Tungsten Carbide Planer Knife SICHUAN TELOS NEW MATERIAL TECHNOLOGY CO., LTD , https://www.sichuankenlarcutters.com
Introduction to Perlite
Perlite is a kind of acidic lava that is erupted by volcanoes. The glassy rock that has been rapidly cooled is named for its pearl-fracture structure. Perlite mines include perlite, obsidian and rosin . The difference between the three is that perlite has a circular arc crack formed by condensation, called perlite structure, water content of 2 to 6%; rosin rock has a unique rosin luster, water content of 6 to 10%; black shale has glass Gloss and shell-like fracture, water content is generally less than 2%.