Machines for the manufacture of constructional products from concrete and calcium-silicate - Safety - Part 8: Machines and equipment for the manufacture of constructional products from calcium-silicate (and concrete)
混凝土和硅酸钙建筑产品制造用机械.安全.第8部分:硅酸钙(和混凝土)建筑产品制造用机械和设备