1. 316 stainless steel material, precision casting, corrosion resistance, no rust, strong and durable. 2. The surface is treated with high-precision point solution polishing, with high precision, brightness and polishing degree, effective anti-rust and anti-corrosion, and long service life. 3. A variety of specifications and sizes are available to meet different needs. 4. Uses: suitable for various yacht RV fuel tanks, sewage outlets, etc. 5. The opening method of the special key is safer and more convenient.
