1) Kev nyuaj siab.
2) Ntau yam yooj ywm thiab nkhaus vim yog roj hmab ua ke.
3) Kev hnav tsis kam zoo thiab tiv thaiv kev cuam tshuam.
4) Ntau qhov loj me ntawm cov hose muaj rau ntau daim ntawv thov.
5) Tus nqi txij nkawm qis: Super hnav-resistant txo qhov zaus txij nkawm thiab tseem yog tus nqi txij nkawm.
1) Kev lag luam tsuas
2) Kev lag luam cement
3) Kev lag luam thee
4) Cov Hoobkas Hlau
5) Kev lag luam chaw nres nkoj
6) Lub Hoobkas Fais Fab
| Txoj kab uas hla | ID | OD | Hnav khoov | Ntev | Siab | |
| nti | 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 xyoo | 20 | 10 |
| 6 | 150 | 152.4 | 190 | 1800 xyoo | 20 | 10 |
| 8 | 200 | 200 | 235 | 2400 | 10 | 10 |
| 10 | 250 | 250 | 290 | 3000 | 10 | 10 |
| 12 | 300 | 300 | 350 | 3600 | 10 | 10 |
Peb txais kev txiav txim siab.
Yog tias koj xav paub ntxiv txog cov khoom, thov koj xav tiv tauj peb thiab peb yuav muab cov khoom zoo tshaj plaws thiab kev pabcuam zoo tshaj plaws rau koj!