Long Service Life: The product is made of premium cast iron, with a plastic spraying process, which is abrasion-resistant, heat-resistant, corrosion-resistant, rust-proof, highly sturdy Diaphragm Pump is small, light and easy to move Convenient to Use: The diaphragm pump adopts an external air distribution mechanism and a fully bolted connection structure, which effectively avoids leakage. Thoughtful Design:The equipped muffler can help reduce the noise of this product, which enhances the comfort of the working environment. Safe to Use:The pump body adopts the air power source design and pneumatic double diaphragm design, which does not generate heat and sparks when working, making it safe to use, Manufacturer: LLAWQSM