In order to avoid the turnover technology of automatic rotation in the whole process, the application of the XC differential shaft can improve the compression effect of the rotary circulation engineering of components of steel fittings, and can increase the technical engineering of high-precision telescopic circulation and high sliding in different structural attributes.

   Second point: edge bearing design aid connection solidity

   By controlling the principle of supporting fittings in the designed main trunk line, the situation that the auxiliary rotating steel is not easy to slide and loosen can be increased, and the technical adjustment principle point that the process support in the bearing rotation is more fixed is increased.