Where can I buy bluestone and gravel in Henan?

Henan bought bluestone rubble in Fudian Town, Yanshi, Luoyang City. Because Longfa Stone Factory, located in Fudian Town, Yanshi, Luoyang, Henan Province, specializes in producing Henan stone, Luoyang stone, Yanshi stone and Fudian stone, and its products include rubble stone, bluestone rubble and Shishi stone.