1/2 slow open spindle brass rubber valve cartridge（https://www.yxfaucet.com/product/slow-open-spindle/12-slow-open-spindle-brass-rubber-valve-cartridge.html） Model: YX-01 Valve Core Material： Brass Terms of payment and delivery: Sea or rail transportation Accessory material： Ceramic sheet, silicone Minimum order quantity: 5000 Pressure Testing： 2.5MPA Price: Consultation Life Cycle Testing： 300,000times