☝️Pipes for laying sewerage systems are classified according to several criteria: purpose, cross-section shape, size and material from which they are made.
In particular, by purpose we divide them into the following groups:
⚪️for internal household sewerage systems;
🟠for laying external sewerage systems;
🟢for storm sewers;
Consider this and use for their intended purpose ✔️
Equipment selection direct/☎️37529 139-5050