... 4. Very competitive price 58H, 58 V and 80V Constant Force Spring Hangers (US ITT Technology)1. Applicable Range The ... capacity.2. Classification and Model ClassificationModel CodeInstallation FormHorizontal Type Constant Force Spring Hangers58H A Type, B Type, C Type, E ... B Type, C Type, D Type, E TypeSupport Type Constant Force Spring Hangers80VF TypeA Type-Duplex Pull Rod ConnectionB Type-Single ...