Security door
Zirconia flap discs are made by zirconia coated cloth, one kind of the flap discs or power flex discs. Zirconia flap discs have the advantages of grinding discs and fiber discs, making it easier for grinding and polishing disposable, reducing the work process and lower the grinding cost.
Abrasive grains for Flap Disc can be Aluminum oxide, calcined aluminum oxide, silicon carbide and zirconia. Flap discs are widely used in grinding and polishing of wood, glass, stainless steel, futniture, mold, metal casting, weld seams and so on. Especially, zirconia power-flex discs fit in sanding seld seam of stainless steel.
Zirconia Flap Disc,Zirconia Alumina Flap Disc,Dewalt Zirconia Flap Disc,Zirconium Oxide Flap Disc Henan Yuteng Abrasives Co.,Ltd , https://www.henanyutengabrasives.com
What are the types of security doors?
Xiao Bian prompts you to pretend that the types of security doors are still quite numerous. According to the contents of GB25-92 "General Technical Conditions for Security Doors," we can understand that security doors are fenced, and there are physical doors. There is also Composite door. At present, Xiao Bian learned that these three types of security doors.