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Promise one

For full-rotation casing, the casing joint group breaks within 50 meters of buried depth during use. If the casing cannot be taken out, the buyer will refund the total amount of the casing for the purchase of the casing.

Promise two
For the rotary digging casing, the supplier is responsible for guiding the construction of 1-2 piles into piles on site. The buyer shall strictly follow the specific operating procedures during operation and use. If all consequences caused by improper operation, the buyer shall Responsible.
The supplier shall be responsible for the fracture of the casing and the deformation of the casing joint during use.

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