Tongda Decorative Material Co., Ltd is Top Three China Private-owned leader in manufacturing and marketing of residential and commercial mineral fiber board and gypsum board, gypsum ceiling board founded in 2002, located in the hometown of china building decorative board, Jinzhou City, Hebei Province, China. We also engage in the design and manufacture in mineral fiber board productline (relative mineral wool product line, expanded perlite product lines),gypsum board production line (gypsum powder product line, pvc coating product line, and magnisium oxide board product line, calcium...