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1)  recognized certificate
认可证书
2)  type approval certification
型式认可证书
3)  exequatur [英][,eksi'kweitə]  [美][,ɛksɪ'kwetɚ]
领事认可证书
4)  Type Validation Certificate
型号认可证书
5)  offer of accreditation
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6)  quality assurance approval certificate
质量保证认可证书
补充资料:55°圆锥管螺纹型式和尺寸
螺纹代号
基本尺寸
英 寸
大径
mm
d=D
螺距
mm
p
每英寸牙数
tpi
中径
mm
d2=D2
小径
外螺纹
d3
牙型高度
H1
圆弧尺寸
r
底孔尺寸
mm
R 1/161/16"7.7230.907287.1426.5610.5810.1256.4
R 1/81/8"9.7280.907289.1478.5660.5810.1258.4
R 1/41/4"13.1571.3371912.30111.4450.8560.18411.2
R 3/83/8"16.6621.3371915.80614.9500.8560.18414.75
R 1/21/2"20.9551.8141419.79318.6311.1620.24918.25
R 3/43/4"26.4411.8141425.27924.1171.1620.24923.75
R 11"33.2492.3091131.7730.2911.4790.31730
R 1 1/41 1/4"41.9102.3091140.43138.9521.4790.31738.5
R 1 1/21 1/2"47.8032.3091146.32444.8451.4790.31744.5
R 22"59.6142.3091158.13556.6561.4790.31756
R 2 1/22 1/2"75.1842.3091173.70572.2261.4790.31771
R 33"87.8842.3091186.40584.9261.4790.31785.5
R 44"113.0302.30911111.551110.0721.4790.317110.5
R 55"138.4302.30911136.951135.4721.4790.317136
R 66"163.8302.30911162.351160.8721.4790.317161.5
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条