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管帽是配管中常用到的管件，一般用于管道的端部，管帽cap (casing)也稱(chēng)為管子蓋、堵頭、蓋頭、悶頭,管帽有對(duì)焊管帽,螺紋管帽和承插焊管帽，管帽焊接在管端或裝在管端外螺紋上用來(lái)封閉管道用，作用與管堵相同。焊接的不能拆卸，螺紋的可拆卸。
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對(duì)焊管帽實(shí)物圖：（網(wǎng)上產(chǎn)品圖片僅供參考，交貨按實(shí)物為準(zhǔn)）
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對(duì)焊管帽結(jié)構(gòu)圖：
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Caps
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對(duì)焊管帽參數(shù)表：
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公稱(chēng)通徑Nominal Diameter
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端部外徑 DOutside Diameter at Bevel
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背部至端面的距離Back to End
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DN
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NPS
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A 系列Series A
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B 系列Series B
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E
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長(zhǎng)度E時(shí)極限厚度T
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E1
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15
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1/2
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21.3
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18
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25
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4.57
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25
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20
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3/4
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26.9
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25
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25
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3.81
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25
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25
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1
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33.7
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32
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38
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4.57
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38
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32
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1.1/4
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42.4
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38
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38
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4.83
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38
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40
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1.1/2
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48.3
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45
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38
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5.08
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38
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50
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2
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60.3
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57
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38
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5.59
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44
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65
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2.1/2
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76.1(73)
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76
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38
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7.11
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51
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80
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3
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88.9
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89
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51
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7.62
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64
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90
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3.1/2
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101.6
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-
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64
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8.13
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76
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100
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4
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114.3
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108
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64
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8.64
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76
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125
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5
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139.7
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133
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76
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9.65
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89
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150
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6
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168.3
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159
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89
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10.92
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102
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200
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8
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219.1
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219
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102
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12.7
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127
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250
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10
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273
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273
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127
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12.7
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152
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300
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12
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323.9
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325
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152
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12.7
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178
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350
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14
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355.6
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377
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165
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12.7
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191
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400
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16
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406.4
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426
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178
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12.7
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203
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450
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18
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457.2
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478
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203
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12.7
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229
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500
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20
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508
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529
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229
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12.7
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254
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550
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22
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559
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-
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254
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12.7
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254
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600
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24
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610
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630
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267
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12.7
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305
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650
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26
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660
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-
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267
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-
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-
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700
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28
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711
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720
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267?
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-
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-
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750
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30
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762
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-
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267?
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-
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-
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800
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32
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813
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820
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267
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-
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-
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850
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34
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864
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-
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267
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-
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-
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900
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36
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914
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920
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267
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-
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-
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950
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38
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965
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-
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305
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-
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-
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1000
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40
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1016
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1020
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305
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-
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-
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1050
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42
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1067
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-
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305
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-
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-
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1100
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44
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1118
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1120
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343
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-
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-
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1150
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46
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1168
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-
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343
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-
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-
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1200
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48
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1220
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1220
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343
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-
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-
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注： 高度E適用于T不超過(guò)括號(hào)內(nèi)數(shù)值時(shí)，否則應(yīng)采用E1高度。?
When T is less the dimension in parentheses, the height E is available. Otherwise E1 is available.
上述尺寸符合GB/T12459、GB/T13401、ASME B16.9、SH3408、SH3409、HG/T21635、HG/T21631、SY/T05010標(biāo)準(zhǔn)
Above dimensions acc.to GB/T12459、GB/T13401、ASME B16.9、SH3408、SH3409、HG/T21635、HG/T21631、SY/T05010.
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