20/50pcs Solid Copper Ball Valve And Electrical Accessories Brass Ball Dia 6/6.35/6.75/7/8/9.525/10/12/12.7/15mm
https://www.vogueparade.com/shopping/EN/200282142/1/1005003645140520/2050pcs-solid-copper-ball-valve-and-electrical-accessories-brass-ball-dia-6635675789525101212715mm//