... 5.rough edge,split surface Rectangle natural black roofing slate with two holes Optional color: Black, grey, green, dark- ... natural Features: 1. Suitable for roofing decoration; 2. Slate With low water absorption, easy installation, good acid resistance, efflorescence proof ... Thickness 0.6-0.8cm, or as per client's requirement With CE certificate, environmental protection Company details:1.We have ...