... latter than 24hours.Manufacturing pictures of fuse type porcelain knife switch: More fuse type porcelain knife switch for selection: Fuzhou Faithreach Ceramic & electronic Co ... supplied customers worldwide with a wide range of fuse type porcelain knife switch from 2P20AS, 2P30AS,2P60AS, 2P100AS, 3P20AS, 3P30AS, 3P60AS, 3P100AS ...