... Eps Sandwich Wall Panel Specifications:Composition:Calcium silicate board(face panel) + Cement and EPS(core) + Calcium silicate board(face panel)Size(L*W* ... usable area, anti-pressure, anti-quake, anti-impact, sound insulation,heat insulation and preservation, simple construction, high efficiency, spiking, stickability, ... proof limit /h≥1≥1≥1≥3≥3≥47Sound insulation capacity in the air /Db≥30≥35≥40≥35 ...