... steel constant spring hanger for pipeType:58V,58H,80VMaterial:carbon steelCeritificate:ISO9001-200058H, 58 V and 80V Constant Force ... .2. Classification and Model ClassificationModel CodeInstallation FormHorizontal Type Constant Force Spring Hangers58H A Type, B Type, C Type, ... , C Type, D Type, E TypeSupport Type Constant Force Spring Hangers80VF TypeA Type-Duplex Pull Rod ConnectionB Type-Single ...