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U.PVC pipes and fittings are manufactured on technological lines of Krauss Maffei and Battenfeld-Cincinnati - Federal Republic of Germany.
| DN | Dmin | Zmin | Bmin | D₁min | L₁min | Lmin | ||
| mm x mm | mm x inch | inch x inch | mm | mm | ||||
| 21 x 21 | 21 x 1/2 | 1/2 x 1/2 | 27 | 3 | 35 | 30 | 16 | 51 |
| 21 x 27 | 27 x 3/4 | 3/4 x 3/4 | 33 | 4 | 44 | 37 | 19 | 59 |
| 27 x 27 | 34 x 1 | 1 x 1 | 40 | 4 | 53 | 45 | 18 | 64 |
| 27 x 21 | 42 x 1¼ | 1¼ x 1¼ | 49 | 5 | 66 | 56 | 23 | 72 |
| 49 x 49 | 49 x 1½ | 1½ x 1½ | 56 | 5 | 74 | 62 | 23 | 84 |
| 60 x 60 | 60 x 2 | 2 x 2 | 69 | 5 | 85 | 74 | 27 | 95 |
| 90 x 90 | 90 x 3 | 3 x 3 | 103 | 6 | 113 | 105 | 35 | 105 |
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