Cov khoom siv tseem ceeb rau cov raj duab plaub fab thiab cov raj plaub fab yog kev khoov txias.
Cov khoom siv khoov txias yog ib qho ntawm cov khoom siv tseem ceeb rau kev tsim cov raj plaub fab thiab plaub fab. Nws txoj haujlwm yog khoov cov hlau ua cov duab raws li xav tau los ntawm ntau lub rollers, thiab tom qab ntawd vuam thiab txiav cov raj plaub fab thiab plaub fab los ntawm cov txheej txheem xws li tsim cov raj plaub fab.
| ERW TUBE MILL LINE | |||||
| Qauv | Ryeeb nkab puag ncig mm | Plaub fabyeeb nkab mm | Qhov tuab mm | Kev ua haujlwm ceev m/feeb | |
| ERW 20 | Ф8-Ф20 | 6x6-15 × 15 | 0.3-1.5 | 120 | Nyeem Ntxiv |
| ERW32 | Ф10-Ф32 | 10 × 10-25 × 25 | 0.5-2.0 | 120 | |
| ERW50 | Ф20-Ф50 | 15 × 15-40 × 40 | 0.8-3.0 | 120 | |
| SIB 76 | Ф32-Ф76 | 25 × 25-60 × 60 | 1.2-4.0 | 120 | |
| ERW89 | Ф42-Ф89 | 35 × 35-70 × 70 | 1.5-4.5 | 110 | |
| ERW114 | Ф48-Ф114 | 40 × 40-90 × 90 | 1.5-4.5 | 65 | |
| ERW140 | Ф60-Ф140 | 50 × 50-110 × 110 | 2.0-5.0 | 60 | |
| ERW165 | Ф76-Ф165 | 60 × 60-130 × 130 | 2.0-6.0 | 50 | |
| ERW219 | Ф89-Ф219 | 70 × 70-170 × 170 | 2.0-8.0 | 50 | |
| ERW273 | Ф114-Ф273 | 90 × 90-210 × 210 | 3.0-10.0 | 45 | |
| ERW325 | Ф140-Ф325 | 110 × 110-250 × 250 | 4.0-12.7 | 40 | |
| ERW 377 | Ф165-Ф377 | 130 × 130-280 × 280 | 4.0-14.0 | 35 | |
| ERW406 | Ф219-Ф406 | 170 × 170-330 × 330 | 6.0-16.0 | 30 | |
| ERW508 | Ф273-Ф508 | 210 × 210-400 × 400 | 6.0-18.0 | 25 | Nyeem Ntxiv |
| ERW660 | Ф325-Ф660 | 250 × 250-500 × 500 | 6.0-20.0 | 20 | Nyeem Ntxiv |
| ERW720 | Ф355-Ф720 | 300 × 300-600 × 600 | 6.0-22.0 | 20 | Nyeem Ntxiv |
| Cov Kab Ntau Lawm Yeeb Nkab Hlau Stainless | |||||
| Qauv | Ryeeb nkab puag ncig mm | Plaub fabyeeb nkab mm | Qhov tuab mm | Ua haujlwm ceev m/feeb | |
| SS25 | Ф6-Ф25 | 5 × 5-20 × 20 | 0.2-0.8 | 10 | Nyeem Ntxiv |
| SS32 | Ф6-Ф32 | 5 × 5-25 × 25 | 0.2-1.0 | 10 | Nyeem Ntxiv |
| SS51 | Ф9-Ф51 | 7 × 7-40 × 40 | 0.2-1.5 | 10 | Nyeem Ntxiv |
| SS64 | Ф12-Ф64 | 10 × 10-50 × 50 | 0.3-2.0 | 10 | Nyeem Ntxiv |
| SS76 | Ф25-Ф76 | 20 × 20-60 × 60 | 0.3-2.0 | 10 | Nyeem Ntxiv |
| SS114 | Ф38-Ф114 | 30 × 30-90 × 90 | 0.4-2.5 | 10 | Nyeem Ntxiv |
| SS168 | Ф76-Ф168 | 60 × 60-130 × 130 | 1.0-3.5 | 10 | Nyeem Ntxiv |
| SS219 | Ф114-Ф219 | 90 × 90-170 × 170 | 1.0-4.0 | 10 | Nyeem Ntxiv |
| SS325 | Ф219-Ф325 | 170 × 170-250 × 250 | 2.0-8.0 | 3 | Nyeem Ntxiv |
| SS426 | Ф219-Ф426 | 170 × 170-330 × 330 | 3.0-10.0 | 3 | Nyeem Ntxiv |
| SS508 | Ф273-Ф508 | 210 × 210-400 × 400 | 4.0-12.0 | 3 | Nyeem Ntxiv |
| SS862 | Ф508-Ф862 | 400 × 400-600 × 600 | 6.0-16.0 | 2 | Nyeem Ntxiv |