black roofing slate

1.Black roofing slate is natural material. 2.passed ASTM and BS680 standard . 3.Available thickness(mm):5-8

Black roofing slate are from natural slate. They are of best quality stone.More detail are as follows:

Color : Black (Dark Gray)

Remarks : This slate is with good quality that passed SDTM and BS680 standard .It has following characteristics

                      A little bit rough surface

                      Nice color

                      Non-fading

                      Durable

Output : 6 containers each month

Regular size : 600X300mm (24″X12″)

                       500X250mm(20″X10″)

                      400X250mm(16″X10″)

Thickness :5-7mm 6-8mm 7-9mm

Transport : 50kilometers from factory to Jiujiang Port

             Physical Property Testing Result

Tests	Slate
Water Absorption(%)	1.83
Compressive Strength (MPa)	69.1
Acid-proof(%)	99.76
Alkali-proof(%)	99.78

black roofing slate