... 36-45kg/cbm 4.ISO9001:2000 ISO14001:20 PU sandwich wall panels Features:1. Heat and sound insulation. Temperature ... suburban housing, villa, kindergarten, model house for apartment, ommercial building, remodeling of old structures, warehouse, steel structure house,workshop, ... Province of China, Shandong Wisdom is the largest Steel Building MaterialsManufacturing Factory in Northern China. We have been ...