Imbonerahamwe y'akazi ya ZTZG ihindura vubagusudiraumurongo wo gukora imiyoboro:
Bituma imizingo ishyirwa ku meza ihinduranya vuba cyangwa ku gasanduku kari ku gice cyo guhinduranya vuba.
Byoseumurongo wo gukora imiyoboro, harimo n'ibice bigize isahani, ingano, n'ibice bito bito bito bito, bishobora gushyirwaho imbonerahamwe y'akazi isimbura vuba.
Mu gihe cyo gukora imiyoboro y'ingano zitandukanye, imbonerahamwe y'akazi ihindura vuba ikenera gusimburwa ishobora gushyirwa ku murongoumurongo wo gukora imiyoboro, isimbura ishami risanzwe rikora imiyoboro.
Ubu buryo bukuraho ikibazo cyo gusenya no gushyiraho imigozi mu gihe cyo gusimbuza imigozi, bigatuma igihe kinini cyo kuyikora kigabanuka kandi bugatuma imikorere y’imiyoboro irushaho kuba myiza.
Ibiimashini ikora imiyoboroikwiriye abakora imiyoboro ikora imiyoboro mito n'iciriritse ivanze.
| UMUYOBORO W'UMWANYA WA ERW TUBE | |||||
| Icyitegererezo | Rumuyoboro w'amazi mm | Rukwetoumuyoboro mm | Ubunini mm | Umuvuduko w'akazi m/umunota | |
| ERW20 | Ф8-Ф20 | 6x6-15×15 | 0.3-1.5 | 120 | Soma byinshi |
| ERW32 | Ф10-Ф32 | 10×10-25×25 | 0.5-2.0 | 120 | |
| ERW50 | Ф20-Ф50 | 15×15-40×40 | 0.8-3.0 | 120 | |
| ERW76 | 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 | |
| ERW377 | 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 | Soma byinshi |
| ERW660 | Ф325-Ф660 | 250×250-500×500 | 6.0-20.0 | 20 | Soma byinshi |
| ERW720 | Ф355-Ф720 | 300×300-600×600 | 6.0-22.0 | 20 | Soma byinshi |
| UMUYOBORO W'IKORESHA UMUYOBORO W'ICUMA CY'ICYUMA KIDAFITE IMPEMBE | |||||
| Icyitegererezo | Rumuyoboro w'amazi mm | Rukwetoumuyoboro mm | Ubunini mm | Umuvuduko wo gukora m/umunota | |
| SS25 | Ф6-Ф25 | 5×5-20×20 | 0.2-0.8 | 10 | Soma byinshi |
| SS32 | Ф6-Ф32 | 5×5-25×25 | 0.2-1.0 | 10 | Soma byinshi |
| SS51 | Ф9-Ф51 | 7×7-40×40 | 0.2-1.5 | 10 | Soma byinshi |
| SS64 | Ф12-Ф64 | 10×10-50×50 | 0.3-2.0 | 10 | Soma byinshi |
| SS76 | Ф25-Ф76 | 20×20-60×60 | 0.3-2.0 | 10 | Soma byinshi |
| SS114 | Ф38-Ф114 | 30×30-90×90 | 0.4-2.5 | 10 | Soma byinshi |
| SS168 | Ф76-Ф168 | 60×60-130×130 | 1.0-3.5 | 10 | Soma byinshi |
| SS219 | Ф114-Ф219 | 90×90-170×170 | 1.0-4.0 | 10 | Soma byinshi |
| SS325 | Ф219-Ф325 | 170×170-250×250 | 2.0-8.0 | 3 | Soma byinshi |
| SS426 | Ф219-Ф426 | 170×170-330×330 | 3.0-10.0 | 3 | Soma byinshi |
| SS508 | Ф273-Ф508 | 210×210-400×400 | 4.0-12.0 | 3 | Soma byinshi |
| SS862 | Ф508-Ф862 | 400×400-600×600 | 6.0-16.0 | 2 | Soma byinshi |