Features a specially treated inner wall that withstands corrosive liquids and high temperatures Equipped with a robust metal muffler Powered by compressed air, allowing for dry-run capability and eliminating electrical sparks, which guarantees stable and consistent performance. The combination of an explosion-proof design and spark-free operation makes it ly suited for use in flammable and explosive environments. Low Maintenance & High Efficiency Welcome and I wish you a happy life, my friend., Manufacturer: JOLIANE