LOONG SLATE-STONE CO., LTD who is a manufacturer deals with slates products. It was established in ***** year we export about 400-450 containers to many countries of this world. Our annual ability of processing is above200, 000 square meters. Especially, our grey black roofing slate has passed the European standard B.S.680 test. Also, we can produce according to the customers exact request. Our products have been exported to Europe, America, Russia, Japan, Korea and Taiwan and they are popular by abroad big clients with the high quality, low price and excellent service.If you are interested in our product, please contact:*****