We sell the most common pipes on the Belgian market. From genuine PEX pipe to multi-layer pipe and PB pipe that is really very flexible. 

PE = Polyethylene
HD = High Density
Multi-layer pipe = PE cross-linked pipe / adhesive layer / ALU / adhesive layer / PE cross-linked pipe (without underfloor heating sheath, with sheath or insulation for heating or sanitary system)
PEX pipe = PE cross-linked pipe / adhesive layer / PE cross-linked pipe / adhesive layer / PE cross-linked pipe (floor heating).
Xa= 70% cross-linking minimum (PEX pipe Begetube and Giacomini on order)
Xb= 70% cross-linking (Giacomini and Begetube)
Xc: 60% cross-linking (Henco)
Xc rixc: 50% cross-linking (Henco Rixc)