... Welded Pipe Fittings: A)CS,SS,AS B)Size: 1/2inch to 48inch C)Standard:SCH20,STD,SCH40,SCH80 Hebei Kairui Pipe Fittings ... Manufacturing Co.,Ltd.Hebei Kairui Pipe Fittings Manufacturing Co.,Ltd. was set up in ... we are specialize in manufacturing all kinds of carbon steel pipe fittings with high quality and best price.ProductCarbon steel elbow, ...