There are three relatively large tempering furnace manufacturers in Luoyang: NorthGlass, LandGlass, and Minte. There are also many smaller ones: Jingrong, Daxin, etc.
As the saying goes: "Good goods are not cheap, and cheap goods are not good." This is an eternal truth. It is recommended to choose NorthGlass' tempering equipment because NorthGlass has its own processing center and test site and is more responsible for users. Not much to say, there is suspicion of entrustment.