Combined with the producing practice,this paper introduces its working principle and process of the spot welding of wiper fixed bracket and the factors influencing the welding quality.

The bending technology of fixed bracket for the tube of excavator was analyzed.

Importance of fixed support in heat pipe net;

The result shows that the scheme using ball joint compensators is feasible, which reduces the quantity of fixed supports and is easier to construct.

In the design of the compensators and supports of the piping line, th e amount and the recuperability of the fixed supports should be reduced as much as possible, and the distance between any two fixed supports should be enlarged as much as possible according to the features of the piping line, from which the economic benefit of the piping line can be fully embodied.

Significance of external fixator in multi-staged management of high energy Pilon fracture;

Treating distal radius fracture with radiocarpal subluxation using external fixator;

Objective To observe the curative effet of the external fixator and transplant of auto marrow to treat the angle abnormality of old fracture in below limbs.

Application of external fixation in orthopaedics surgery;

The results of external fixation combined with internal fixation in the treatment of tibial and fibula complicated fracture;

Treatment of severely infectious bone defect in lower limb by bone extension with external fixation;

External fixators with kirschner wire for fractures of distal radius fractures;