With  polypropylene  as  its  raw  material,  this  fiber  is  produced  by  special
technology. The use of this gives to products net-like structure with many fiber
monofilaments.
When  the  fiber  is  put  into  concrete,  the  horizontal  structure  in  fiber
monofilaments can be destroyed in the course of stirring owing to friction and
rubbing, and the fiber monofilament or net-like structure will fully stretch, thus
the concrete is reinforced by a great number of polypropylene fibers.