Acoustic tube probe into the channel of the shaft within the piles at the ultrasonic testing method. It is an important part of the pile ultrasonic inspection system, it is embedded within the pile and the pile cross section of the arrangement will directly affect the test results. Therefore, the pile should be measured in the design of the acoustic pipe layout and embedded standard into the drawings, construction should be strict control of the embedded quality, to ensure that the testing work is carried out smoothly. 
 Advantages: 
 The two main advantages are the convenience and economy. 
 The convenience of using this product, you can completely avoid the site welding, wire sets, or the grooving operation without having to power auxiliary hydraulic tool only supporting manual operation can be easily completed, the provincial time, effort, one-time installation success. 
 Economy and compared to the conventional design φ57 x 3.5mm steel, can save more than 2/3 of the steel, the material costs are significantly reduced; as the most simple domestic operational acoustic tube products, you can save the largest human cost in all aspects and can significantly improve work efficiency; thin acoustic tubes of various connections, the product may be needed in the field cutting use of any length, short tube and the material head waste, the actual total cost of significantly reduced . 
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