structural c-channel 1)best quality, 2)cheapest price, 3)perfect service, 4)easy working. structural c-channel LIGHT STEEL KEELS DESCIPTIONSNo.& Name50 TRACKS FOR DRYWALLBase Materials60g / sqm galvanized steel, 0.6mm in thicknessFeaturesGood machine performance, high strength & light self-weight, fire-proof, dampproof, OperatingShort-time instuction, easy working, it a new decorative ...