F250x250 high precision high frequency welded pipe production line is mainly to product the square pipe size 125x125-250x250mm,thickness is from 5.0-12.7mm.This production line each unit equipment, full use of the domestic and foreign similar equipment, innovative design, full control with PC or computer control, advanced technology, convenient operation and maintenance, and reached the international level in the early ninety s, for the domestic leading level.