Quality Valve Regulated Lead Acid Battery from China. Lead ingots are used as raw materials, processed into small lead blocks (typically 10-15mm in size) through the cold-cutting method to facilitate subsequent powder production. Wuhan Future Intepower Co., Ltd. quality manufacturer from China. WhatsAPP: +86 13476847881 WECHAT:13476847881 EMAIL: jiangwei503@gmail.com Welcome to visit our official website : https://www.intepowers.com