... rust, corrosion resistance, etc.7.The product is suitable to ink, ethanol, toluene, acetone, glue, coating, acid and alkali, etc ... installed vertically, pay attention to the direction of arrow2.The ink mouth should connection with hose.3. after the completion ... to drill press and other equipment, then unloaded the six M5 hex screws, lesting the spring jumped out. Single-Phase Pneumatic Diaphragm Pump