... 4" Small orders accepted Forged brass straight radiator valve with lockshield, 1, Size:3/8", 1/2", 3 ... the depositeProduction step:1, Smelting the brass bars and making the hot forging2, Machining and CNC processing3, Assembling4, ... Experienced technical staff3, All products are approved by CE and ISO4, Marking the customer's brand on ... accepted Brass radiator valve, temperature control valve (with CE)