Color-coated steel sandwich panel in the quality requirements of quality requirements 1. steel sandwich panel: steel and sandwich due to product quality certificate of compliance. 2. Color steel, aluminum, bolts, rivets and other connecting material shall have a certificate of compliance to product quality color coated paper, the surface may not have rust, stains, pitting, scratches. 3. cement perlite insulation composite panels should guarantee quality of raw materials and factory compliance certification. 4. The quality of raw materials should guarantee light steel, light steel components factory compliance certification shall be played. 5. vertical walls must be smooth, consistent color, neat and clean, neat seams. 6. doors, windows, lock switch flexible crimson color coated paper, not the lack of accessories. 7. truss angle iron welded solid, not sealing off, no rust. 8. railings, stairs welding firm, still no shortage of stalls, not sealing off. Color-coated grades from prepainted code, substrate properties and substrate type code code of three parts, which feature code between the substrate and the substrate type code with a plus sign "+" connection. Prepainted code with "painted" the first letter of the Chinese Phonetic Alphabet "T" represents. When the substrate is characteristic code a) cold forming steel plating substrate is composed of three parts, of which the first part of the letter "D", on behalf of cold forming steel; the second part is the letter "C" painted volume pricing, on behalf of the rolling conditions cold-rolled; the third part is a two-digit number, namely 01, 03 and 04. When Redu board consists of four parts, including the same portion of the first and second substrates and electroplating, Binzhou color coated paper | Wuhan color coated paper | Jinhong Run steel provided by Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry. Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry (www.bxjhr.com) (www.bxjhr.com) strong, credible, Shandong Binzhou board (with) wood industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinhong Run steel and you hand into the brilliant, for a better future!