Abstract Thi s a rticle i s the ex perimental analysis and the theo retical resea rch on the inserting depth o f the new ty pe thin-w all long steel-pole. From this w o rk, the fo rmula fo r co ntro ling the inser ting depth w as obtained for the fi rst time, w hich has great referential v alue on manufacturing.
1996, Vol. 13 
