 ??? 0 ????? 201%B2%BB%D0%E2%B8%D6%B9%DC ?? ??????? ??????????? ?????????? |
| ??????????????-?????????????? |
|
??????????????-??????????????
??????????????-??????????????
?????????????????????????????????????
1?? ???????????=0.00785???????+????????????
2?? ???????????=0.02466???????????????
3?? ?????m????=0.00617?????????? (??????????????
4?? ??????m????=0.00786?????????
5?? ???????m????=0.0068???????????????? &n... |
| http://m.zebwoc.cn/shownewsX.asp?id=4169 - 2024/7/17 15:56:04 - |
| ???325???50??????????ж? |
|
???325???50??????????ж?
???325???50??????????????10???12??
?????
????????????????????????????????????????????????????????????????????,????????????????????????????
1????
???????????????????????????????????У??????[1]???????????????????????????770???222???й?????????????о????????????????????????????ε??????仯????????????????????????????????????
?????????????????????????????????????????????????????????й???????... |
| http://m.zebwoc.cn/shownewsX.asp?id=4168 - 2024/7/15 16:25:00 - |
| D406?????1???ж??????? |
|
D406?????1???ж???????
D406?????1???ж???????
????????8mm??????D406?????1????12??????
????и?
???
406??50
20#
4
????и?
???
406??60
... |
| http://m.zebwoc.cn/shownewsX.asp?id=4167 - 2024/7/13 16:53:56 - |
| ??16???????????? |
|
??16????????????
??16????????????
??16?????????0.7?????в?????????????qq:1340616942
??????????
??????ˉ??????????450?????￡????????????10???20???????????????ι?????
??????ˉ????????????????o????????????????????????????????????￡??????????????????????и??????????????????????????????????????????
(2)?????
??????ˉ??????????????????????????????????????????ˉ???????????????С???????????... |
| http://m.zebwoc.cn/shownewsX.asp?id=4166 - 2024/7/11 17:22:52 - |
| DN650?????????????? |
|
DN650??????????????
DN650??????????????
????????
???
????
????
?????
???
660??22
10CrMo910
3.35
... |
| http://m.zebwoc.cn/shownewsX.asp?id=4165 - 2024/7/9 17:51:48 - |
| ????и???г?????и??245*8?? |
|
????и???г?????и??245*8??
?????
????????13589464666
377??20
20#
20.642
?????
????????13589464666
365??52
20#
8.5... |
| http://m.zebwoc.cn/shownewsX.asp?id=4164 - 2024/7/7 18:20:44 - |
| ???????????????η????????????????п?????ι??????? |
|
???????????????η????????????????п?????ι???????
?????GB/T8163 ??????????з????????????????????????????????????á?
???? GB/T3092???????????????????????????????????????????????????????????????????????????????????????????????????б???????????????????????????
??п???????????п?????????涼?ж?п???????????á??????????????????????????п????п???????
??????￡???????????????з????????????? ???????κ????????????????... |
| http://m.zebwoc.cn/shownewsX.asp?id=4163 - 2024/7/5 18:49:40 - |
| ?????????????????????? |
|
??????????????????????
????????????????????????????????к?????GB/T17395-2008????????硢???Ρ????????????????
?????
????????13589464666
377??25
45#
61.8
?????
... |
| http://m.zebwoc.cn/shownewsX.asp?id=4162 - 2024/7/3 19:18:36 - |
| ?????????????????????????????? |
|
???????????????????????????????
?????????????????????????о?????????????????????????????????????????????????????????綼??????????????????????????????????????????????
?з????????????????????泣??????????????????4?????22???? 6?????27???? 1?????32???? 1.5?????48?????????????????45??? ????????з??С1????????2???? ???????з????????????500??????? ???????? ????????? ??????????????
|
| http://m.zebwoc.cn/shownewsX.asp?id=4161 - 2024/7/1 19:47:32 - |
| ???????????д???? |
|
???????????д????
GB3639????λ???????????????2.6??????????20#??????????51?????????30????????/??????????????????????????????20-??51????30Y-GB3639GB8162????????????1.7??????:??10#??????????73?????????3.5????????A???????,?????3000???????,??????????10-73??3.5??3000????-GB8162B ??ι?,????????????,???????????,?????5000???????????????10-73???3.5??5000-GB8162 |
| http://m.zebwoc.cn/shownewsX.asp?id=4160 - 2024/6/29 10:16:28 - |
|
|
??? ???? [3]
[4]
[5] ???? ??
|
|
|
|
|
|
