The first one on the left is an older generic MIJ possibly a hybrid assembled with retrofit top rod with tilter. In spite of its shortcomings the middle and base are made of high quality chromed steel. Probably an insert hole right in the lower bottom tubing where the tightened wingscrew fits when the tripod is set up, and usually the middle section has an upper wingscrew which penetrates all the way through the tubing to clamp the top rod directly without use of any vise type joint.
The second stand is most likely generic low end Taiwan. The older ones have metal links a la W&A but most of the newer stuff has the cheap nylon inserts to clamp the tubing.