... :ductile iron 2)size:DN80-DN2600 3)type:K 4)standard:ISO2531/EN545 Collar K-type pipe fitting1)material:ductile iron2)size ... :DN80-DN26003)type:K4)standard:ISO2531/EN545/EN598Welcome to ... .We can supply various pipe fitting products,such as , flanged socket,flanged spigot,bend,tee,taper,collar,flanged bell mouth,etc ...