On road [translate] a Pipe insulation tube should be fabricated in half and segmental forms to fit the circumference for whatever pipe size are in insulated. See the fig.1 管子以半和分装式形式应该制造绝缘材料管适合圆周为任何管子大小在绝缘。 看见 [translate] ...
The insert shall be at least as long as the shield and where a vapor barrier is required, the vapor barrier shall extend 2 inches (5 lmm) beyond the shield and overlap the outside circumference by 2 inches (5 lm). 9.2.3 It is recommended that provision be made to hold shields and ...
Whilst shown collectively in Figure 6 for convenience, the wiring elements 28 are laid individually against the outer surface of the inner pipe 26 as will be explained. When so laid, the wiring elements 28 are spaced around the circumference of the inner pipe 26 with the heating elements in ...