... wait for equipment and staff accident, which is widely used.2.Technical Data about QGX crane limit switch 1, environment ... POTS adjustable limit switch (based on user needs increase to 12 file)QGX type crane is height limit orders hint: ... , Weight Limiter, Anemometer ,etc. which are researched independently are widely used in electrical, chemical, steel, metallurgy, construction, ports, shipping and ...