????纣??????39mm??????????????????

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?????????????MPa 345-305 ????????????bMPa 510-490???????5%??21??
Q345QC???????????Q345QC??????
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    ??????????????????????????Q345C??Q345D??Q345E??SM400??SM490??S355J2+N??????????
???Q345D???????????????????????????Q345qC/qD/qE??Q370qE??Q370qD???????B-HARD360/400,450,???
NM360/400/500/450,???HARDOX400/450/500,???XAR400/450/500??????????AH32/36??DH32/36??EH32/36??
????????CCS??LR??DNV??BV??GL??RA??ABS??RA?????????????Q460C/D/E??Q390C/D??Q420C/D??Q550C/D
??Q690C/D??Q620D,WH60/70/80????Z15??Z25??Z35??????????壨?????BHT80D??
BHT100D,BS600MC,BS700MC,BHT130D,BHT150D??????Z???????Z15??Z25??Z35???????????????????????
??????????????????????????????????60???????????л?е??????????仯???????Ч???
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??λ??????????????????????????????????в????????????????????飨????飩??????
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?????磡 ???????????????

????纣??????39mm????????????????????????