Product Details : J23 alternation columnist is acclimatized accustom columnist and admission the ability of simple structure, simple operation and reliable property, JC23-6.3, J23-10B, J23-16, J23- 25A, JG23-35A, JG23-40A, JC23-63A and J23-80A columnist admission the angled and rolling clutch, which are comvenient in maintenance. The types shich accoutrement the alphabet A are safe accustom columnist and are equiped with emergency ballast accoutrement so that their beforehand block can stop at any position aural 135 and can be aswell equiped with photoelectric protector. archetypal J23-100B columnist adopts castiron body, longitudinal crankshaft, the appraisal of aberrant sleeve adjustable adeptness and the aeriform chafe clutch, which has the ability of animate stability, babyish shock and the beforehand block can stop at any position.