Prestressing heat-proof tubing
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Prestressing heat-proof tubing
Product name: Prestressing heat-proof tubing
Size:
Specification
External diameter of outer tube
Internal diameter of inner tube
External diameter for contact surface
Connected thread
Length range
88×40
88.9
40.9
108
zigzag thread
9000-10000
88×50
88.9
50.6
108
zigzag thread
114×62
114.3
62
127
trapezoid-like thread
127×62
127
62
141.3
trapezoid-like thread
127×76
127
76
141.3
trapezoid-like thread
Code:

 Code of   Prestressing heat-proof tubing has four parts: One is YG(precondition), part two is Specification(External diameter of outer tube( integer value)×Internal diameter of inner tube( integer value), part three is Max length in the well (unit:100m), part four is grade of Prestressing heat-proof tubing . There is symbol "×" between part two and three.
I.E.:YG114×62×12C
It means:C grade Prestressing heat-proof tubing, with External diameter of outer tube is 114.3mm, Internal diameter of inner tube is 62.0mm and Max length in the well is 1,200m

Picture:

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