Introduction of the ladder
A ladder is a vertical or inclined set of rungs or steps. There are two types: rigid ladders that can be leaned against a vertical surface such as a wall, and rope ladders that are hung from the top. The vertical members of a rigid ladder are called stringers (US) or stiles (UK). Rigid ladders are usually portable, but some types are permanently fixed to buildings.
Rigid ladders are available in many forms, such as:
Aluminum step ladder :one kind is hinged in the middle to form an inverted V, with stays to keep the two halves at a fixed angle,which is called double sided step ladder. And the other kind is the vertical ladder, also called straight ladder. Another is household ladder ,it is like double sided step ladder.These aluminium step ladder are the popular products of Zhongxin.
Extension ladder or Telescopic ladder, fixed ladder divided into two or more lengths for more convenient storage.
Rigid ladders are available in many forms, such as:
Aluminum step ladder :one kind is hinged in the middle to form an inverted V, with stays to keep the two halves at a fixed angle,which is called double sided step ladder. And the other kind is the vertical ladder, also called straight ladder. Another is household ladder ,it is like double sided step ladder.These aluminium step ladder are the popular products of Zhongxin.
Extension ladder or Telescopic ladder, fixed ladder divided into two or more lengths for more convenient storage.
