1. Insulation pipe wall thickness and support spacing based on the transmission medium may be, general support for the 1.5-2 m distance. 2. Through the end of the first charge, two stand side by side, in the middle distance even installed according to design requirements. 3. The diameter, coating extrinsic reasons, so stand space is different in the range 2-40mm gap are qualified. 4. Insulation installed in different brackets in the pipe diameter, so the curvature due to its toughness can be changed with the pipe outside the arc. 5. A stent, such as the installation of small diameter pipe 508, 559, 610, etc., due to the larger pipe curvature, such as easy installation can use the installation tools, such as tensile calipers and so on. 6. According to the construction process requirements, the sleeve is longer than 30 meters, in order to prevent wear and tear is too large, front-end charge to be managed using the steel frame, head through the casing, the steel bracket can be removed hosted reused. 7. To speed up the construction speed of the power tool fastening screws. 8.800mm and over reinforcement with the increase in charge diameter in order to achieve a double tightening effect.