
Huremu hushoma uye kugadzikana kwemuchina kunotigonesa kushandisa nzvimbo dzakakwirira dzakasungirirwa pasina zvinotsigira zvepakati zvekurongedza. Kukwanisa kukuru kwekuyerera kwegasi nemvura, kuyerera kwakaderera pamadziro uye kusanyanya kusvibiswa. Kana mhete dzemvura dzakakwira dzikatsiva kurongedza kweshongwe kwakajairika, saka kuyerera kwemvura mumakoramu aripo kunogona kuwedzerwa zvakanyanya kana kuti kushandiswa kwesimba kunogona kuderedzwa zvakanyanya.
Kushanda zvakanaka uye kugoverwa kwakanaka, kunyanya, kupatsanura kushanda zvakanaka kuchiri kuchengetedza kugara kwakanaka mukati mehuwandu hwemhepo yakakura. Pamusoro pekurongedza kwakakosha, kune hunhu hwehunhu hwakanaka hwekunyorovesa uye hwakazara nemvura yegesi inobata; yakazara negasi inobata nemvura, kudonha kwemhepo kwakaderera, nzvimbo yakakura isina chinhu, kuyerera kukuru, kushandiswa kwesimba shoma, Kupararira kwakanaka kwazvo mukutakura shongwe, nezvimwewo.
| Tsanangudzo | Nzvimbo yepamusoro | Kuwanda kwehuwandu | Nhamba |
| m2/m3 | kg/m3 | ||
| 25mm | 460 | 145kg | 64000 |
| 38mm | 325 | 125kg | 25000 |
| 50mm | 236 | 65kg | 115000 |
| 76mm | 150 | 90kg | 3000 |
| Pfuma/Zvinhu | PE | PP | RPP | PVC | CPVC | PVDF |
| Kuwanda kwe g/cm3 | 0.94-0.96 | 0.89-0.91 | 0.93-0.94 | 1.32-1.44 | 1.50-1.54 | 1.75-1.78 |
| Tembiricha yekushandisa | 90 | ≤100 | ≤120 | ≤60 | ≤90 | ≤150 |
| Kudzivirira ngura yemakemikari | kugona | kugona | kugona | kugona | kugona | kugona |
| Rudzi rwePakeji | Kukwanisa Kutakura Mudziyo | Nguva yekutumira | Inishuwarenzi Yemhando Yepamusoro | Mitemo Yekubhadhara | ||
| 20 GP | 40 GP | 40 Hofisi huru | ||||
| Bhegi retani | 20-24 m3 | 40 m3 | 48 m3 | Mukati memazuva 3-10 | Chinese National Standard Inopa vimbiso yemhando yepamusoro kana zvakumbirwa. | T/T, L/C, Paypal, West Union |
| Bhegi repurasitiki | 25 m3 | 54 m3 | 68 m3 | |||
| Bhokisi repepa | 20 m3 | 40 m3 | 40 m3 | |||