For the PP-lined Malleable Cast Iron Fittings, also called as Lined G. I Fittings or Polymer-cored pipe fittings in malleable cast iron, they are made of G. I Fittings 
and lined with PP via injection machine, used to connect the PE-lined steel pipe by thread.
The working pressure can be up to 1.6Mpa and the size available is from 1'2" to 4".

As an option, the lining can be PVC also.
Specification: BS EN 10241:2000, BS EN10226-1:2004, BS EN10242, BS143&1256  
              JWWA K116:1987, JPF MP003-2003, JPF MP005-2004, CJ/T137-2008

Lined G. I Fittings, plastic lined pipe fittings, PP-lined Fittings, Poly Steel Fittings, Polymer-cored pipe fittings, PP lined G. I Fittings, PVC lined G. I Fittings, Polymer-cored pipe fittings in malleable cast iron, C-core fitings, screw-type fittings, malleable iron threaded fittings of lining plastic