Do you know what is NSF 61 9 faucet?

OuuKey NSF 61 9

Brass, plastic, and stainless steel are some of the materials that the current domestic industry manufactures fauces from. The most commonly sold taps however are manufactured from copper, with China being the industry’s top distributor. Copper faucets are fused with zinc, forming brass. To make the brass easier to cut, it is also mixed with […]