Size range: dn50-dn600rnlength: 150mm-400mmrnband/clamp: stainless steel aisi 304rnrubber gasket: epdm/nbrrnbolts: galvanized steelrnnuts: stainless steel a2-70rnworking pressure: pn10, pn16rnbe used on repairing of cracks, breaks and holes of different kinds of pipelines like cast iron, ductile iron, steel, asbestos cement, pvc, hdpe pipe etc. Suitable for water, sewage, gas, oil etc.for more detail information kindly come to worgocn dot com or contact us sales at worgocn dot com freely.