GB 12383.2-90

PN1.6MPa raised face ductile iron pipe flange cover

PN1.6MPa凸面球墨铁管法兰盖

Standard Type
GB
ICS
N/A
CCS
N/A
Status
N/A
Issue Date
N/A
Implementation
N/A
Responsible Dept
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Drafting Unit
N/A