1, We are manufacturer of graphite pencil lead and woodless full graphite pencil. Please kindly2, Our product certificate: EN71-3, ST2002-3, ASTM F963-08, ISO14001, ISO90013, Our products have been exporting to Middle East, Europe, South America, NorthAmerica, Africa, South Asia, etc. Our high quality has been regularly exporting to worldfamous COMBOW Company of Japan and FABEL-CASTELL company.