 
灌溉管道数据库
|
|
|
管材名称 |
代号 |
公称管径 (mm) |
承压 (MPa) |
国家标准 |
|
|
PVC-U |
20-315 |
0.7-9.7 |
SL/T
96-1994 |
|
PVC-U |
75-200 |
1.5-3.9 |
GB/T
13664-92 |
|
PP |
20-315 |
0.5-7.7 |
SL/T96.3-1994
|
|
LDPE |
20-200 |
2.0-18 |
GB
6677-86 |
|
LDPE |
6-90 |
0.5-6.6 |
SL/T
96.2-1994 |
|
HDPE |
16-315 |
2.0-28.6 |
GB/T 13663-93 |
|
|
118-1668 |
6.1-18.9 |
|
|
|
200-1000 |
8.8-20.5 |
GB
3421-82 |
|
|
32-325 |
2.5-8.0 |
YB
231-70 |
冷拔无缝钢管 |
|
20-200 |
2.5-8.0 |
YB
231-70 |
|
|
6-150 |
2.0-4.5 |
GB
3092-82 |
|
|
100-800 |
25-80 |
GB
1081-83 |
|
|
100-400 |
|
SL 11-90
|
|
|
100-600 |
25-50 |
SL/T
98-1994 |
|
|
75-500 |
9-50 |
GB
3039-82 |
镀锌薄壁钢管 |
|
32-160 |
0.65-1.5 |
JB/T
7870-1997 |
|
|
40-160 |
1.0-3.0 |
JB/T
7870-1997 |
|
| |
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dim visitors
whichfile=server.mappath("../count.txt")
Set fs = CreateObject("Scripting.FileSystemObject")
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visitors=thisfile.readline
thisfile.close
countlen=len(visitors)
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next
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Set out=fs.CreateTextFile(whichfile)
out.WriteLine(visitors)
out.close
set fs=nothing
%>
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