... seat 3d chair design, MR866 1.Back &seat sponge :high -density PU 2,molded by cold foaming 3.Best price and servic Auditorium seat ... 40GP 270PCS/40HQSites Applicable: Music hall, Auditoria , Conference hall, thertreBack &seat sponge :high -density PU, molded by cold foamingBack ... & seat cover: premium deformation resistant high-density hard plywood, high- ...