河北博朗过滤器材厂生产贺德克滤芯贺德克滤芯型号1263053 1300 R 010 BN4HC 1263057 1300 R 010 BN4HC/-V 1263061 1300 R 010 BN4HC/KB 1263054 1300 R 020 BN4HC 315821 1300 R 050 W/HC 304700 1300 R 100 W 311501 1300 R 100 W/HC 1265871 1700 R 003 BN4HC 1265878 1700 R 003 BN4HC/KB 1265872 1700 R 005 BN4HC 1285533 1700 R 005 BN4HC-V-KB 1265242 1700 R 010 BN4HC 1265880 1700 R 010 BN4HC-KB 1265873 1700 R 020 BN4HC 1265887 1700 R 050 W/HC