Cangzhou Yongwang Pipeline Manufacturing Co,Ltd. is a manufacturer.Leading producer are carbon steel ,stainless steel ,alloy steel ,X-class series addition with elbow,bend,reducer ,flange,capp-end,tee cross, coupling,nipple,union of A105,A182,F42/52/60/65,A234WPA,WPB,WPC,WP1,WP5,WP7material ect:304/316L321/347,20#,A106 ,A105 in different material ,thickness,and,standard.