
A na-akpọkwa mgbanaka Rosetter nke plastik a na-akpọ Teller Ring ma ọ bụ Telleresette Ring nke bụ ihe e ji emeju ihe n'ụdị ellipsoid, nke nwere ọtụtụ mgbaaka gburugburu, nke AJ Teller mepụtara na United States na 1954. Ọ na-agbakwụnye ọgịrịga na-eme ka ọ sie ike n'etiti ma na-emepụta ọdịdị "A", na-eme ka ike nrụgide nke okooko osisi ahụ ka mma nke ukwuu.
1. Olu dị elu nke enweghị oke, mbelata nrụgide dị ala
2. Ogologo obere nnyefe nke otu ibu, oke idei mmiri dị elu
3. Njikọ gas-mmiri mmiri otu, obere ike ndọda kpọmkwem
4. Oke arụmọrụ mbufe oke ibu
| Nha (mm) | Elu m2/m3 | Mpịakọta N'efu. % | Nọmba kwa m3 | Ibu kg/m3 |
| 25*9*(1.5*2) (mgbaaka 5) | 195 | 82 | 170000 | 90 |
| 47*19*(3*3) (mgbaaka 9) | 185 | 88 | 32500 | 111 |
| 51*19*(3*3) (mgbaaka 9) | 180 | 98 | 23500 | 103 |
| 59*19*(3*3) (mgbaaka iri na abụọ) | 150 | 92 | 17500 | 72 |
| 73*27.5*(3*4) (mgbaaka iri na abụọ) | 127 | 89 | 8000 | 80 |
| 95*37*(3*6) (mgbaaka 18) | 94 | 90 | 3900 | 78 |
| 145*37(3*6) (mgbaaka 20) | 118 | 95 | 1100 | 48 |
| Oke kachasị Akụkụ OD | Mgbachi aka Ogologo | N'efu Olu (%) | Elu Ft2/Ft3 | Nkezi Nkwakọ ngwaahịa Ihe kpatara ya | Owuwu ụlọ ihe |
| 1.81" | 0.75" | 87 | 55 | 36 | |
| 2.75" | 1.00" | 93 | 38 | 18 | |
| 3.75" | 1.50" | 92 | 30 | 16 | |
| 3.25" | 1.25" | 95 | 28 | 11 | |
| 4.125" | 2.19" | 96 | 22 | 9 |
| Ụdị ngwugwu | Ike Ibu Akpa | Oge Mbuga ozi | Mkpuchi Dị Mma | Usoro Ịkwụ Ụgwọ | ||
| GP 20 | GP 40 | Isi ụlọ ọrụ 40 | ||||
| Akpa ton | 20-24 m3 | 40 m3 | 48 m3 | N'ime ụbọchị 3-10 | Nkwenye ịdị mma nke ọkọlọtọ mba China dịka arịrịọ si dị. | T/T, L/C, Paypal, West Union |
| Akpa plastik | 25 m3 | 54 m3 | 68 m3 | |||
| Igbe akwụkwọ | 20 m3 | 40 m3 | 40 m3 | |||