Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The choice of metallographic sandpaper This material does not matter much, no matter the material is soft or hard, it has to go through the process of rough grinding, fine grinding, polishing and corrosion. Generally, 100# 200# 400# 600# 800# 1000# can…
Purchase of sandpaper Common sense - the larger the number of sand grains, the larger the sand grain size, use NO: P: two ways to mark the size of the sand grain, there is also a way. For grinding the surface of wood, use sandpaper or emery cloth from…
The role of sponge sandpaper Sponge sandpaper is that finer material. The belt base of sponge sandpaper, the type of abrasive, the production process of sponge sandpaper, and the binder of abrasive are constantly improving. The grinding process of sponge…
The difference between white sandpaper and red sandpaper Both belong to dry sandpaper. The dry sandpaper uses synthetic resin as a binder to bond the silicon carbide abrasive on the latex, and coats it with an antistatic coating to make a high-end product…
The difference between water sandpaper and dry sandpaper 1. The gap between the sand grains of the water sandpaper is small, and the ground powder is also small; when used with water, the powder will flow out with the water, so it should be used with…
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