This product has a three-layer precision electroplating process, and good copper casting can achieve the effect of rust and stain prevention. Its elongated threaded interface and its non-slip double-wire design make installation easy. The angle valve is made of high-quality refined copper, which is wear-resistant and corrosion-resistant. Core High-quality copper valve core treated with a special process is smooth and anti-drip. Water inlet pipe adopts eight nickel-braided stainless steel pipes to ensure service life. Product Description Please have experience or professionals to install 1.Put the water in the water line before installation to thoroughly flush impurities in the water line. Since unused water pipes usually contain impurities such as sediment, hemp silk, etc., no matter how good the valve core is, it cannot withstand the damage caused by impurities. 2. The hot and cold water supply pipes from the faucet must be connected correctly, facing the faucet, connecting the hot water on the left and the cold water on the right. 3. When installing, use balanced force, choose an appropriate wrench, and do not use excessive force to install or damage components. 4. The criterion for a successful installation is: do not let a drop of water run, leave no trace.