PP Battery Separator: meet all index of JB/T,7630.4-1998 standard; good mechanical strength; acid corrosion. In China, our company is the larger manufacturer of PP Separator, processing 18 PP separator production lines, in testing of the State Storage Battery Quality Supervising Checking Center, the products meet all index of JB/T,7630.4-1998 standard. The company possesses integrated quality ...