Shandong Chanyun Material Technology Co.,Ltd,which belong to the Lantian Group,mainly produce the steel structure purlin like c&z shaped steel,decking steel,roofing steel via PPGI,and the different core sandwich panels.Lantian have 3 Galvanized production lines also 3 prepainted steel coil production lines,so the metal of sandwich panels we can provide by ourselves with lower cost and better quality,because we can control the quality in our company,and we also can do the Bao steel,Guanzhou brand steel as the face/back metal of the sandwich panels,about the sandwich panels,we have many different core for choose,from rock/glass wool to PUR/PIR,from the S-O-Mg to Hollow magnesium oxychloride grille,from the XPS to silicon.We can follow your demand or offer professional suggestions about your project,so if you have any cladding system,no matter the single metal or the sandwich panels,we can solve it,even the cold storage,cleaning room projects,agricultural farm usage.