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hNH74HAAƬʽֹyaS
H74HAAƬʽֹyaƷИ˜
1) OӋҎGB/T 12233 2) YLȣGB/T 12221 3) BӷmJB/T 79HG20592GB9113ANSI 4) ԇczJB/T 9092GB/T13927 5) -ضȣGB/T 9131 6) aƷRGB/T 12220
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H74HAAƬʽֹyaƷcYߴ
ע:mBӳߴ磺GB/T9113.1-2000˜ʡ
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H74HAAƬʽֹyOӋc a. YcLȶYLֻЂymֹy1/4-1/8 b. weСpֻЂymֹy1/4-1/2 c. yP]ˮNС d. ˮƽܵʹb
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