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[单选题]
QB/T2474-2000标准中钩舌在承受多少静拉力后,仍能正常使用()
A.1000N
B. 1200N
C. 1500N
D. 800N
提问人:网友xrpwkl
发布时间:2022-01-06
A.1000N
B. 1200N
C. 1500N
D. 800N
A.双舌、钩舌≥12.5mm,双舌(钢门)9mm,单舌12mm
B. 双舌≥12.5mm,双舌9mm,单舌12mm
C. 双舌≥11mm,双舌(钢门)9mm,单舌12mm
D. 双舌≥12.5mm,双舌(钢门)9mm,单舌10mm
A.双舌、钩舌≥12.5mm,双舌(钢门)9mm,单舌12mm
B.双舌≥12.5mm,双舌9mm,单舌12mm
C.双舌≥11mm,双舌(钢门)9mm,单舌12mm
D.双舌≥12.5mm,双舌(钢门)9mm,单舌10mm
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