... samples, others all can test, such as: powder, board, paper, paste, sheet, clay,etc.A & E Lab. Main Products: Atomic Absorption ... (powder), Fish Balls (paste),etc² Paper making industry: Paper Factory (paper/sheet), Printing Factory (paper/sheet), Publishing Company (paper/sheet), etc² Textile industry: Fabric ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)