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株洲冶炼厂科研所研制成功一种免维护型蓄电池板栅新材质——用来全部取代锑的新型铅基合金Pb-Ca合盒,它的最大特点是可以做成全封闭的、免维护的蓄电池。1986年经湖南茶陵蓄电池厂组装生产蓄电池批
Zhuzhou Smelter Research Institute successfully developed a maintenance-free battery grid new material - used to replace all the new lead-based alloy Pb-Ca alloy box, which is the most prominent feature can be made of fully enclosed, maintenance-free Battery. In 1986 by the Hunan Chaling Battery Factory assembled battery production batch