black roofing slate

1.Black roofinf slate is of good quality that passed ASTM and BS680 standard . 2.Regular size:300x600/250x500/250x400mm.

Black roofing slate is green material. They are of good quality and nice color. Some details 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