common size of roofing slates: [ 60X30cm, 50X25cm, 40X25cm, 40X20cm, 30X30cm] Blue-black slates were extracted from sedimentary rock from 300 to 400 million years old Silurian Slate Deposits. They are....
We are Chinese quarry producer and exporter of slate in a variety of colors for use in roofing, flooring, paving, walling, and billiard tabletop slate.Our slate conform to BS680( 1971) and ASTM C406....
Chopped strand mat is made from fiberglass strands chopped to length and bonded with powder binder or emulsion binder. Chopped strand mat is used primarily for hand lay up process, filament winding....
we are a leading manufacturer and exporter of fiberglass products.