CPC Subgroup
E03F 3/04 Pipes or fittings specially adapted to sewers (manufacture of concrete tubes B28; pipes or pipe fittings in general F16L)
Full Title
Sewer pipe-line systems > Pipes or fittings specially adapted to sewers (manufacture of concrete tubes B28; pipes or pipe fittings in general F16L)
2 direct subcodes
Child Classifications
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