免费可以看黄的视频

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?????? ?????

????? Garting ?? ???? ???????

????? ???????

1. Grating ???. ???? ??? ??? (??????? ? ?????) ????? ????? ??? ??? ???? ??? ?? ???? ???. ???? ???? JG325 / 30/100 JG255 / 30 / 100S? ?????
2. ????? Grating? ?? ??????? ?? ????? ???. ??????: ????? ?? ??? ??? ????? ?? ?? ?? ??? ?? ?? ?? ???. ?? ???? ?? ??? ??? ?? ????? ???.
3. grating ?? ?????.
(1) ??? ?? ??? ?????? ??? ??? ??? ?? ???.
(2) ???? ???? ?? ??? ?????? grating ??? ?? ????? ?? ??? ? ?? ?? ???? m2 ??? ??? ??? ??.
(3) ??? ?? ?? ???? ?????? grating ??? ?? ????? ?? ??? ? ?? ?? ???? ???? ??? ??? ??? ??. ???????: grating ?? ??? YB / T4001.1-2007 ???? caculated ??? ??.
4. grating ?? Banding. ??? ??? ?? ???? ??? ??? ??? ??? grating ?? banding ??? ????? ???. ??? banding ?? ?? banding ?? ????? ? ????? ??? ?? ????? ?? ????? ????? ???? ?? ??????.
5. Serface ????. ????? ????-dip galvanizing ??? ??? ??????? ??? ????? ???? ? ?????? ???? ?? ?? ???? ???? ??? ????? ??? ??? '?? ????? ??? ??? ??.

???? ???

1. grating ?? ???. JG255 / 30/100 ? JG325 / 30/100 ???? ?? ????? ??? ???.
2. ??? ?? ???? ???? ?? ????? ???. ??????: ??? ??? ?? ??? ???? ?? ???? ?? ?????? ?? ???.
3. ??? ?? ?????. ??? ??? ??? ?? ???? ??? ??? ??.
4. ?????? ?? ????. ????? ????-dip galvanizing ??? ??? ??????? ??? ????? ???? ? ?????? ???? ?? ?? ???? ???? ??? ????? ??? ??? '?? ????? ??? ??? ??.
??? ??? ?? ???? ??? ?? ????? ??? 5.? ??????? ??? ?? ?? ???? ????? ???. ? ???? ??? ???? ??? ?? ???? ? ????? ??? ?? ?? ? ????? ?? ???.

?? ???? ???? 65 × 5 ???? ????? ??? adopts. ??? ??? mitred ???? ?????? ??? ??????? ???.

????? ??? ??? (????)

???? ??? ???? (????)

30

125

155

185

215

245

275

305

40

125

165

-

205

245

285

325

????? ?????? ?? Spacing (????)

45

75

75

100

100

150

150

???? ???

? ???? ???? ? ??? ?? ???? matting ??? ??????? ??? ???? grating ?? ?? ?? ??? ??? ??? ???? ??? ????. ???? grating? ??? ??? packing ??? ????? ???.
???: ?? packing ?? ??? ????? ????? '?????? ????? ??? ??.

bzt1
????? ???? ??? ?????? ?????
bzt4
?????? ??? ?????
bzt2
???? ??? ??? ?????? ?????
bzt5
STANCHION ??? ???? ?? ?????
bzt3
GRATING ??? ???? ?? ?????
bzt6
?? ????? ???? ??? ???? ?? ?????

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免费可以看黄的视频