blue black roofing slate
1)Low-calcium,low water absorb rate
2)material:quartzitic slate

blue black Roofing Slate With Different Shapes
Optional color: Black, grey, green, dark-green, blue and rusty yellow
Finishing: Both sides natural
Features:
1. Suitable for roofing decoration;
2. Slate With low water absorption, easy installation, good acid resistance, efflorescence proof, heat-resistance and antifreeze, it is widely used in outdoor roofing, paver, and cladding.
Size: 300*200mm, 400*250mm, 500*250mm, 600*300mm
Thickness 4mm 6mm, 8mm, 10mm or as per client's requirement