We are offering metallic type pump. Ds03-metallic type38" air-operated diaphragm pump application profession: 1. Construction and building : cement, paint, sewage, pitch, etc. 2. Chemistry and petroleum : chemical agent, latex, adhesive , solvent, heavy oil, gasoline, etc. 3. Electronics industry : resin, glaze , ceramics transferred and solvent, water circulatory system. 4. Fiber, leather , paper : adhesive, glue , antiseptic, sludge, waste water. 5. Transferred equipment : lubricating oil, hydraulic fluid, cutting oil, release agent, waste oil. 6. Others : ink, pottery clay thick liquid, motor oil.