日本又骚又刺激的视频在线观看_羞羞视频在线观看免费_国产秀色在线www免费观看_欧美乱大交xxxxxbbb

???? ???????? ?? corroding ???? ?? ????????? ???? ??? | WEIHUA

Corroded metal nameplates ?? ?????? ??? etched ????????? ???? ????? ???? ????? ?? ???? ???? ???????? ?? ??????? ?????? ??????? ??????, ?????????, ?????????? ?? ??? ????? ?? ????? ??????

??????? ???? ???????? ?? ??????? ?????????:

1) ???????:

???? (????? ????) ?????? ?????? ???? ?? ??????, ???? 720 ?? ????? ?? ???? ?? 5 ???? ?? ?? ??????? ?? ? ???????

2) ???? ??? ???? ?? ??? ?? ?????:

(1) ???????? ??????:

2.2-4 kw ?????? ???? ???? ?? ???, ?? ?? ???????? ????? ???? ???? ??? ????? ?? ????? 300-350 RPM ?? ???? ??? ?? ????? ???? ??, ?? ????? ?? 2000-3000 RPM / ???? ???

(2) ????? ?????:

10-30 ????? ?? ??? 65-85 ℃ ?? ?? ???? ??? ??? 10-15% ?????? ????????????? ?? ??? ???? ?? ????? ??????, ??? ??? ??? ???? ?? ?? ??? ?? ??? 5% ???? ??? ??? ????????? ???? ???????

(3) ????? ?????:

?????? ????? (??? ?????) ??? ???? ??? ?? ???? ???? ?? ???, ??????? ?? ???? ??? ?? ????? ?????? ?? ?? ?? ???? ???? ?? ?? ?? ????? ? ???? ???, ?? ??????? ?? ????? ???? ???, ?? ??? 5% ???????? ?????????? ??? ?? ??? ?? ????

(4) ???? ?????????? ????:

???????? ?? ?????? ???? ??????? ??????, ???? ?? ??? ???????? ?? ?????? ?? ??????? ???? ?? ??? ???? ?? ??? ?? ???? ???? ???? ???

?? ???? ???? ???? ?? ??? ???!

????? ???? ???? ??????? - ????? ??? ?????? ?? ?????????? ?????? ??? ?? ?? ?? ????????? ??? ????? ??? ???? ???? ??? ?????? ?? ????? ?? ?????????? ?? ????? ???? ?????????, ???? ???????? ???? ???? ????? ???????? ?? ??????? ?? ???? ???? ????? ??? ?????? ?? ????? ???????? ?? ??? ?? ???? ??? ???? ?? ?????? ?? ????? ???? ?? ??? ?????? ?? ??? ???? ?? ???? ??? ?? ?? ??? ???? ????? ?????? ????? ??? ??? ???? ?? ??? ???? ????????!


????? ???: ?????-22-2020
日本又骚又刺激的视频在线观看_羞羞视频在线观看免费_国产秀色在线www免费观看_欧美乱大交xxxxxbbb
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |