Time the safe stopping device drop safe stopping device (locking),
after the dump, can protect the flowing tubing head pressure
installment, enables you a more convenient security to carry on the
service work.

Simple structure weight light, structure simple, therefore the work is
very convenient. The complete structure all uses the metal steel
products to make, does not use the replacement spare part, maintains
the management to be extremely convenient.

The work is easy Go up and down and withstand portably on to be loaded with the wheel,
the motion freedom, the work is easy.

Does not have the metal friction to be loaded with the rubber plate on
the fluctuation board, both may prevent skids the labor, and does not
have the metal friction.

The specification change simple specification may request the change
along with the customer.