... force spring 2.Standard : 58H, 58 V and 80V 3. MOQ : 1 PIECE 4. Very competitive price 58H, 58 V and 80V Constant Force ... to 39,690daN loading capacity.2. Classification and Model ClassificationModel CodeInstallation FormHorizontal Type Constant Force Spring Hangers58H A Type, B ... , C Type, D Type, E TypeSupport Type Constant Force Spring Hangers80VF TypeA Type-Duplex Pull Rod ConnectionB Type-Single ...