法兰浮动密封保温球阀 BQ41H-16P,BQ41H-16R,BQ41F-25P,BQ41F-25R,BQ41H-40P,BQ41F-40P,
DN40,BQ41F-40R-DN40,
BQ41H-16P-DN50,BQ41H-16R-DN50,BQ41F-25P-DN50,BQ41F-25R-DN50,BQ41H-40P-DN50,BQ41F-40P-DN50,
BQ41F-16P-DN50,BQ41H-25P-DN50,无锡昌林，BQ41F-16R-DN50,BQ41H-25R-DN50,BQ41H-40R-DN50,BQ41F-40R-DN50,BQ41H-16P-DN65,BQ41H-16R-DN65,BQ41F-25P-DN65,BQ41F-25R-DN65,BQ41H-40P-DN65,BQ41F-40P-DN65,
BQ41F-16P-DN65,BQ41H-25P-DN65,BQ41F-16R-DN65,BQ41H-25R-DN65,BQ41H-40R-DN65,BQ41F-40R-DN65,
BQ41H-16P-DN80,BQ41H-16R-DN80,BQ41F-25P-DN80,BQ41F-25R-DN80,BQ41H-40P-DN80,BQ41F-40P-DN80,
BQ41F-16P-

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