Puranga pepa maitai
He roa ngā puranga rau me te pūnaha raka poutū e hanga ana i te pakitara diaphragm.
He maha ngā wā ka whakamahia ngā pakitara hei pupuri i te oneone, i te wai rānei. Ko te mahi a te wāhanga puranga rau e whakawhirinaki ana ki tōna āhua me te oneone e peia ana.
Ka whakawhitia te pēhanga e te puranga mai i te taha teitei o te pakitara ki te oneone kei mua i te pakitara.
I roto i te whakatō papa, ko ngā papa hurihuri wera me ngā papa hanga matao ngā tikanga matua e rua mō te hanga papa. Ahakoa he rerekētanga i waenga i ngā tikanga e rua, ko te rerekētanga nui ko te honohono.
Nā te mea he mea hanga ngā puranga pepa huri-wera ki te maitai pāmahana teitei, he kikī ake ngā hononga i ngā puranga pepa hanga-matao.
Ko te tikanga, kāore e tūtohutia kia whakamahia ngā raka wetekina i roto i ngā āhuatanga taraiwa tino kino, i runga rānei i ngā pakitara e hiahiatia ana he iti te uruhanga. Ki te kore, ka rite tonu te mahi a ngā momo wāhanga e rua.
| Ingoa Hua | Puranga Pepa Rino |
| paerewa | ASTM, GB, JIS, DIN |
| Manawanui | ±5% |
| kounga maitai | S235 S355 S390 SY295 SY390 |
| Tono | Te Hanga Whare |
| Roa | 9M 12M 15M 18M |
| Tikanga | Hurihia Wera Hurihia Matao |
| Āhua | Āhua-U, Āhua-Z |
| Tukunga | i roto i ngā rā 10-15, i te whakaaro rānei ki te rahinga |
| Ratonga Tukatuka | Te wero, te tapahi |
| Te kawe waka | Mā te nuinga, mā ngā ipu rānei |
| Te kaha tuku | 3000 tāne mita ia marama |
| Ngā tikanga utu | T/T, L/C |
| Te tākai | 1. Ka taea te tākai mā te ipu, mā te oko nui rānei. |
| 2. Ka taea e te ipu 20 putu te uta i te 25 tana, ka taea e te ipu 40 putu te uta i te 25 tana. | |
| 3. He mōkihi paerewa mō te kawe moana, he whitiki maitai me te paihere e rite ana ki te rahi o te hua. | |
| 4. Ka taea e mātou te hanga kia rite ki tāu hiahia. |