100X??????
???????
100X???????????????????????????????????????????????????????????????λ???趨?????????????????????????????????????λ????????????????????????????????????????????λ???????????????????100X?????????????????????????????λ??????????????????鷽??????????????????????????????????????????????????????DN450mm????????????DN500mm????????????????????
???????100X
?????????DN20~800mm
?????????PN1.0~2.5MPa
????????0~80??
?????????
??????????????????
??????????31011402021123??
??????????31011402021123??
