GB/T 7221-1987

Abolished

Field balancing equipment--Description and evaluation

现场平衡设备的说明和评价

Standard Type
GBT
ICS
21.120.40
CCS
J04
Status
废止
Issue Date
1987-01-15
Implementation
1988-01-01
Responsible Dept
国家标准委
Drafting Unit
N/A