1) Kuuma kwambiri.
2) Yosinthasintha komanso yopindika kwambiri chifukwa cha rabala yosakanikirana.
3) Kukana bwino kuvala komanso kukana kuwononga.
4) Kukula kwa payipi kosiyanasiyana komwe kulipo kuti kugwiritsidwe ntchito nthawi zambiri.
5) Mtengo wotsika wokonza: Kukana kwambiri kuvala kumachepetsa kuchuluka kwa kukonza komanso mtengo wokonza.
1) Makampani opanga migodi
2) Makampani opanga simenti
3) Makampani osamalira malasha
4) Malo Opangira Zitsulo
5) Makampani a doko
6) Malo opangira magetsi
| M'mimba mwake | ID | OD | Kuvala kupindika | Utali | Kupanikizika | |
| inchi | mm | mm | mm | Mpa | m | Kg/cm2 |
| 1 | 25 | 25.4 | 42 | 300 | 10 | 10 |
| 1 1/4 | 32 | 31.8 | 50 | 380 | 10 | 10 |
| 1 1/2 | 38 | 38.1 | 56 | 480 | 10 | 10 |
| 2 | 50 | 50.8 | 72 | 600 | 20 | 10 |
| 2 1/2 | 65 | 63.5 | 94 | 780 | 20 | 10 |
| 3 | 75 | 76.2 | 105 | 900 | 20 | 10 |
| 3 1/2 | 90 | 88.9 | 120 | 1080 | 20 | 10 |
| 4 | 100 | 101.6 | 140 | 1200 | 20 | 10 |
| 5 | 125 | 127 | 160 | 1500 | 20 | 10 |
| 6 | 150 | 152.4 | 190 | 1800 | 20 | 10 |
| 8 | 200 | 200 | 235 | 2400 | 10 | 10 |
| 10 | 250 | 250 | 290 | 3000 | 10 | 10 |
| 12 | 300 | 300 | 350 | 3600 | 10 | 10 |
Timalandira maoda apadera.
Ngati mukufuna kudziwa zambiri za malonda, chonde musazengereze kulankhulana nafe ndipo tidzakupatsani malonda oyenera komanso ntchito yabwino kwambiri!