Description
High-precision
steel moulds are rolled by steel plates, then produced by welding,
heat treatment (removing internal stress), rough turning, fine
turning, grinding, polishing and other techniques, which is unique
in the markets with moulds of high precision and smooth finish
degree and easy demoulding therefore the produced tubes are spare
in materials.
   Howerer for large diameter GRP pipes, it is
very expensive to manufacture steel moulds; thus we could also
adopt steel structure as the framework and process GRP as the
surface. This combined structure has the characteristics such as
simple production and low cost. In China, more than *5% of GRP pipe
manufacturers are using this type of combined GRP moulds to
manufacture qualified GRP pipes in compliance with international
standards and export them to the overseas market.Â
   In addition, we are also supplying the
following size moulds for manufacturing GRPÂ pipes and
fittings or GRP tanks:Â
    1. GRP Tank steel moulds:
DN**0~DN***0mm
　 2. GRP Pipe steel moulds: DN*0~DN***0mm
　 3. Composite pipe mould with steel liner and FRP
reinforced material: DN**0mm-DN ***0mm
　 4.Flange steel moulds: DN*5~DN***0mm
　 5.Elbow steel moulds: DN*5~DN**0mm.
