... 1. Applicable Range The 58H, 58 V and 80V constant force spring hangers (US ITT Technology) are applicable to 38mm ... loading capacity.2. Classification and Model ClassificationModel CodeInstallation FormHorizontal Type Constant Force Spring Hangers58H A Type, B Type, C Type, ... Type, C Type, D Type, E TypeSupport Type Constant Force Spring Hangers80VF TypeA Type-Duplex Pull Rod ConnectionB Type-Single ...