1. Nchọpụta efere: mgbe efere ígwè a na-eji emepụta nnukwu dayameta submerged arc welded ogologo seam steel pipe na-abanye n'ahịrị mmepụta, buru ụzọ mee nyocha ultrasonic zuru ezu;
2. Edge-egwe ọka: akụkụ abụọ nke efere ígwè na-egweri na n'akụkụ abụọ site n'ọnụ egwe ọka igwe iji nweta mkpa efere obosara, efere onu parallelism na uzo udi;
3. Pre-ehulata: jiri pre-ehulata igwe na-ehulata efere efere, nke mere na efere efere nwere chọrọ curvature;
4. Akpụ: na JCO akpụ igwe, mbụ pịa ọkara nke tupu ekwe ígwè efere n'ime a "J" udi site multiple nzọụkwụ stamping, mgbe ahụ ehulata nke ọzọ ọkara nke ígwè efere n'ime a "C" udi, na n'ikpeazụ na-etolite otu. mepee udi "O".
5. Tupu ịgbado ọkụ: mee ka kpụrụ ogologo onuete welded ígwè anwụrụ nkwonkwo na-eji gas na-echebe ịgbado ọkụ (MAG) maka na-aga n'ihu ịgbado ọkụ;
6. Internal welding: longitudinal multi waya submerged arc ịgbado ọkụ (ruo anọ wires) na-eji weld n'ime ogologo onuete ígwè anwụrụ;
7. Mpụga ịgbado ọkụ: longitudinal multi waya submerged arc ịgbado ọkụ na-eji weld n'èzí nke longitudinal submerged arc welded ígwè ọkpọkọ;
8. Nnyocha nke Ultrasonic I: 100% nke n'ime na n'èzí welds nke ogologo welded ígwè ọkpọkọ na isi metal n'akụkụ abụọ nke weld;
9. Nyocha X-ray I: 100% X-ray ụlọ ọrụ nyocha telivishọn ga-eme maka n'ime ime na n'èzí welds, a ga-anabatakwa usoro nhazi ihe oyiyi iji hụ na uche nke nchọpụta ntụpọ;
10. Mgbasa dayameta: gbasaa ogologo zuru oke nke submerged arc welded ogologo nchara ígwè ọkpọkọ iji melite akụkụ ziri ezi nke ọkpọkọ ígwè ma melite nkesa nke nrụgide n'ime na nchara ígwè;
11. Nnwale Hydrostatic: nyochaa ọkpọkọ nchara gbasaa n'otu n'otu na igwe nyocha nke hydrostatic iji hụ na ọkpọ ígwè na-ezute nrụgide ule chọrọ site na ọkọlọtọ.Igwe ahụ nwere ọrụ nke ndekọ na nchekwa na-akpaghị aka;
12. Chamfering: hazie njedebe ọkpọkọ nke ọkpọkọ ígwè ruru eru iji zute nha nha dị mkpa nke njedebe ọkpọkọ;
13. Ultrasonic nnyocha II: mepụta ultrasonic nnyocha otu otu ọzọ na-elele ga-ekwe omume ntụpọ nke longitudinal welded ígwè ọkpọkọ mgbe dayameta mgbasa na mmiri nrụgide;
14. Nyocha X-ray II: X-ray ụlọ ọrụ telivishọn nnyocha na ọkpọkọ ọgwụgwụ weld foto ga-rụrụ maka ígwè ọkpọkọ mgbe dayameta mgbasa na hydrostatic ule;
15. Nyochaa ihe ndọta magnetik nke njedebe ọkpọkọ: mee nyocha a iji chọpụta ntụpọ njedebe;
16. Mgbochi mgbochi na mkpuchi: ọkpọkọ ígwè ruru eru ga-adị n'okpuru mgbochi corrosion na mkpuchi dịka ihe onye ọrụ chọrọ.
