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不銹鋼截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運(yùn)動。閥桿的運(yùn)動形式，有升降桿式(閥桿升降，手輪不升降)，也有升降旋轉(zhuǎn)桿式(手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上)。截止閥只適用于全開和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。
不銹鋼截止閥性能范圍：
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型號
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公稱壓力
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試驗壓力
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工作溫度(℃)
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適用介質(zhì)
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強(qiáng)度(水)Mpa
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密封(水)空氣(Mpa)
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低壓密封(空氣)Mpa
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J41W-16P(R)
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1.6
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2.4
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1.8
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0.6
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≤200
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NITRIC ACID
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硝 酸 類
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J41W-25P(R)
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2.5
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3.8
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2.8
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0.6
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≤200
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ACETIC ACID
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醋 酸 類
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J41W-40P(R)
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4.0
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6.0
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4.4
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0.6
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≤200
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NITRIC ACID
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硝 酸 類
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J41W-64P(R)
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6.4
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9.6
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7.0
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0.6
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≤200
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ACETIC ACID
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醋 酸 類
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零件名稱
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材 料Material
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Q41W-16P-25P-40R
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Q41W-16R-25P-40R
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閥體、閥蓋
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鉻鎳鈦鋼
Ci Ni Ti |
鉻鎳鉬鈦鋼
Ci Ni Mo Ti Steel |
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閥 板
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閥 桿
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閥桿螺母
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鋁鐵青銅
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手 輪
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灰鑄鐵、可鑄鍛鐵
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型 號
Type |
公稱通徑
DN |
尺 寸(mm)
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|||||||
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L
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D
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D1
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D2
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H
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b-f
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Z-Φd
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Do
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||
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J41W-16P(R)
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15
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130
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95
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65
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45
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170
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16-2
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4-14
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120
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20
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150
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105
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75
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55
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190
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16-2
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4-14
|
140
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25
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160
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115
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85
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65
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205
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16-2
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4-14
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160
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|
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32
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180
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135
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100
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78
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270
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18-2
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4-18
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180
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40
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200
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145
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110
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85
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310
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18-3
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4-18
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200
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50
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230
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160
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125
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100
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358
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18-3
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4-18
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240
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65
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290
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180
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145
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120
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373
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18-3
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4-18
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280
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|
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80
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310
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195
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160
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135
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435
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20-3
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8-18
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320
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|
|
100
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350
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215
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180
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155
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500
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20-3
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8-18
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360
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|
|
125
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400
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245
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210
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185
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614
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22-3
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8-18
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400
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|
|
150
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480
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280
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240
|
210
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674
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24-3
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8-23
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400
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|
|
200
|
600
|
335
|
295
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265
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818
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26-3
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12-23
|
450
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|
|
250
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730
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405
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355
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320
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969
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30-3
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12-25
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550
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型號
Type |
公稱通徑 DN
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尺 寸(mm)
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|||||||
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L
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D
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D1
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D2
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H
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b-f
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Z-Φd
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Do
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||
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J41W-25P(R)
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15
|
130
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95
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65
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45
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233
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16-2
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4-14
|
120
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20
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150
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105
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75
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55
|
275
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16-2
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4-14
|
140
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25
|
160
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115
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85
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65
|
285
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16-2
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4-14
|
160
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|
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32
|
180
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135
|
100
|
78
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302
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18-2
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4-18
|
180
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|
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40
|
200
|
145
|
110
|
85
|
355
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18-3
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4-18
|
200
|
|
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50
|
230
|
160
|
125
|
100
|
362
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20-3
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4-18
|
240
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|
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65
|
290
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180
|
145
|
120
|
400
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22-3
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8-18
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280
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|
|
80
|
310
|
195
|
160
|
135
|
430
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22-3
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8-18
|
320
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|
|
100
|
350
|
230
|
190
|
160
|
465
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24-3
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8-23
|
360
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|
|
125
|
400
|
270
|
220
|
188
|
550
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28-3
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8-25
|
400
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|
|
150
|
480
|
300
|
250
|
218
|
700
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30-3
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8-25
|
400
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|
|
200
|
600
|
360
|
310
|
278
|
780
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34-3
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12-25
|
450
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|
|
250
|
730
|
425
|
370
|
335
|
900
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36-3
|
12-30
|
550
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