Xiangyang quality natural black pebbles factory direct Min Yu

Xiangyang quality natural black pebbles factory direct China Yu black pebbles transformers are widely used in power plants, water filter pads, steel mills, petrochemical plants, sewage plants, chemical plants, water plants, public buildings, villas, interior floor heating , patio, garden pavement, river embankment, lake and other projects, is an excellent material of choice. Cobblestone performance parameters: surface finish 98%, compressive strength 600 Kg / M2 or more.