Have U ever met these following equipments? Or do U know what are they used for?

In China tungsten, inspecting tungsten carbide products is one of my major tasks. So I am the one who frequently come into contact with these devices. China tungsten is quite stricted with the tungsten or molybdenum products, therefore, there is no doubt that we’re so well-equipped. The following are our hardness-testing device, density tester, and also, the projector. This projector is differ from the usual ones in playing vedio or as other media-player, it’s used for tesing the diameter or chamfers of our products. If you have bought our tungsten carbide balls or blades or tungsten rods with chamfers, then they must have had intimate contact with it.