Hightech Flat aluminium coils Colorful Coated Flat Aluminum Coil Strip Channel Letter Return High quality flat aluminum channel letter edge for channel letters making ✅PE color coating for Gluing letters and PVDF color coating for Liquid acrylic letters ✅25 micron color coating thickness for surface and 18 micron backside color coating ✅High flexibility and workability ✅Sturdy and durable ✅Use the advanced machine for coating and precision equipment for slotting ✅Actual length, size and thickness ✅Professional export packaging ✅Certified by asi, CE,TUV, SGS , ISO 9001 and Alibaba trade assurance ✅Using Virgin aluminum with a purity of 99% ✅available in Brushed, Mirror and plain colors ✅from 0.5mm up to 1.2mm thickness ✅10 years coating and corrosion guarantee