Природные Кровельные Сланцы

Exportation to Germany market since year 1998;to UK market since year 1999;to France market sinceyear 2006; Features of the roofing slates:1. Color available:Black, Blue Black, Grey, Grey, Rusty 2.Beautiful surface venations 3.Un-weathered(acid resistant), unfading in color 4.Carrying LNE A1,T1,S1 certificate 5.Flatness ensures an easy installation 6.Tidy trimmed edges ensures an easy installation on roof 7.Pirates free ensures long lasting roof. 8.Time evidenced in France, UK and USA market CE Testing ResultTesting Item Result Criteria Water Absorption 0.32% A1 Thermal Cycle No change T1 Sulfur Dioxide No change S1 Carbonate Calcium 0.7% Unfading Deviation from Length/width 0.1/0.2% passed Deviation from Edge Straightness 0.1/0.2% passed Deviation from Rectangularity 0.4% passed Deviation from Flatness 0.4% passed ProductionSpecification:Size Thickness Quarry Code Ca11 Black Slate Quarry Code Ca12 Black Blue Quarry Code Ca13 Grey Slate Monthly Output(M2) Monthly Output(M2) Monthly Output(M2) 6030 5-7mm 500 1500 4500 50375 5-7mm 100 500 1500 5025 5-7mm 1200 4500 6000 40375 4-6mm 200 500 1200 4025or4020 4-6mm 3500 4500 6000 Total Output: 5500M2 monthly 11500M2 monthly 19200M2 monthly