... resistant technology.H)Advanced calcium lead alloy technology, maintenance-free design.I)Reliable labyrinth-like seal design.J)Lead ... ., Ltd.Business Type:ManufacturerMain Products:BatteryOperational Address:Yuchengwei, Baili Industrial Zone, Dongsheng Town, Zhongshan, Guangdong, China (Mainland) Company Authentication ... 11-21Registered Capital:RMB 800,000 DIN72 Maintenance Free Panasonic Car Batteries