1. Cov kav dej seamless (GB/T8162-2008) yog cov kav dej seamless siv rau cov qauv thiab cov khoom siv tshuab.
2. Seamless kav dej rau kev thauj mus los (GB/T8163-2008) yog cov kav dej seamless siv los thauj cov dej xws li dej, roj, roj, thiab lwm yam.
3. Seamless kav dej rau cov boilers qis thiab nruab nrab siab (GB3087-2008) yog siv los tsim superheated chav kav, boiling dej kav rau qis thiab nruab nrab siab boilers ntawm ntau yam qauv, thiab superheated chav kav, cov pa luam yeeb loj, cov pa taws me me. cov kav dej thiab arch bricks rau locomotive boilers. High-quality carbon structural steel kub-kuav los tiag thiab txias-draw (dov) seamless kav rau cov kav dej.
4. Seamless kav rau high-pressure boilers (GB5310-2008) yog cov high-zoo carbon steel, alloy steel thiab stainless kub-resistant steel seamless kav siv rau cov cua kub qhov chaw ntawm cov dej raj boilers nrog high pressures thiab saum toj no.
5. High-pressure seamless kav rau cov khoom siv chiv (GB6479-2000) yog cov zoo carbon structural steel thiab alloy steel seamless kav uas haum rau cov khoom siv tshuaj lom neeg thiab cov kav dej nrog kev ua haujlwm kub ntawm -40 ~ 400 degree thiab ua haujlwm. siab ntawm 10 ~ 30Ma.
6. Seamless kav rau roj av cracking (GB9948-2006) yog seamless kav uas haum rau cov kav rauv, kub exchangers thiab pipelines nyob rau hauv roj refineries.
7. Cov kav hlau hlau rau geological drilling (YB235-70) yog cov kav hlau siv los ntawm cov chaw haujlwm geological rau cov tub ntxhais drilling. Lawv tuaj yeem muab faib ua cov kav dej laum, laum dab tshos, cov kav dej tseem ceeb, cov kav dej thiab cov kav dej xau raws li lawv siv.
8. Seamless yeeb nkab rau pob zeb diamond core drilling (GB3423-82) yog seamless yeeb nkab siv rau laum yeeb nkab, core pas nrig thiab casing rau pob zeb diamond core drilling.
9. Roj drilling yeeb nkab (YB528-65) yog cov yeeb nkab seamless nrog sab hauv lossis sab nraud thickening ntawm ob qho kawg rau roj drilling.
10. Seamless kav rau tsheb ib nrab-ncej casings (GB3088-82) yog cov zoo carbon structural steel thiab alloy structural steel kub dov seamless kav siv rau kev tsim tsheb ib nrab-ncej casings thiab tsav qag tsev ncej raj.
11. High-pressure roj yeeb nkab rau diesel xyaw (GB3093-86) yog ib tug txias-draw seamless yeeb nkab siv los tsim cov high-pressure kav rau diesel cav txhaj tshuab.
12. Precision puab txoj kab uas hla seamless kav rau hydraulic thiab pneumatic thooj voos kheej kheej (GB8713-88) yog txias-draw los yog txias-dov precision seamless kav nrog meej puab diameters rau manufacturing hydraulic thiab pneumatic thooj voos kheej kheej.
13. Cold-draw los yog txias-dov precision seamless yeeb nkab (GB3639-83) yog ib tug txias-draw los yog txias-dov precision seamless yeeb nkab nrog siab qhov tseeb thiab zoo nto tiav siv nyob rau hauv txhua yam qauv thiab hydraulic khoom. Precision seamless kav yog siv los tsim cov khoom siv tshuab lossis cov khoom siv hydraulic, thiab lwm yam.
14. Stainless hlau seamless yeeb nkab rau kev siv cov qauv (GB/T14975-2002) yog ib tug kub-kuav los tiag stainless hlau ua los ntawm corrosion-resistant kav thiab structural yam thiab qhov chaw uas yog dav siv nyob rau hauv tshuaj, roj av, textile, kev kho mob, zaub mov, machinery thiab lwm yam lag luam. extruded, nthuav) thiab txias rub (dov) seamless kav.
15. Stainless hlau seamless kav dej rau kev thauj mus los (GB/T14976-2002) yog kub dov (extruded, expanded) thiab txias-draw (dov) seamless kav ua los ntawm stainless hlau siv los thauj cov kua.
16. Cov kav dej tshwj xeeb uas tsis muaj seamless yog cov ntsiab lus dav dav rau cov kav dej seamless nrog rau lwm cov duab sib txuas tshwj tsis yog cov kav dej. Raws li qhov sib txawv ntawm qhov sib txawv thiab qhov ntau thiab tsawg ntawm cov kav hlau, lawv tuaj yeem muab faib ua cov kav dej tshwj xeeb uas tsis muaj qhov sib npaug ntawm cov phab ntsa tuab (code-named D), cov kav dej tshwj xeeb seamless nrog cov phab ntsa tuab tsis sib xws (code-named BD) , thiab sib txawv-inch tshwj xeeb-puab seamless kav (code-named BJ). Cov yeeb nkab tshwj xeeb zoo li seamless yog siv dav hauv ntau yam qauv, cov cuab yeej thiab cov khoom siv tshuab.
17. Seamless steel kav rau cov kav dej kub qis (GB/T18984-2003) yog siv rau -45 degree ~-195 degree qis-kub siab lub nkoj cov kav dej thiab cov kav dej kub tsis tshua muaj kub exchanger.
