... 12 years industry experience Product No./NameJJ-00018 / High temperature teflon coating baking tray of aluminum die castingManufacture Process1 ... processing facilities with CNC machining, turning, milling, tapping, drilling, polishing, punching, etc... 6) 3 advanced high & low temperature ... : +/- 0.0005inch, also accord with GB6414 High temperature teflon coating baking tray of aluminum die casting