1.MOQ:10 Tons 2.Material:galvanized steel 3.Size:follow your demand 4.Used for: suspension ceiling Steel Keel Accessory Features of light steel keel: high performance, easy cut apart, non-deforming, simply installation, dry construction, light weight and environment friendly.Method to test the keel's quality1. look. Appearance smooth, no spots.2. galvanized thickness: 80g/m2( qualified), 100g/m2( ...