Dab tsi yog peb txoj hauv kev tseem ceeb ntawm kev tsim cov yeeb nkab steel?
Seamless kub dov, siab zaus vuam, submerged arc vuam
Raws li cov txheej txheem ntau lawm, steel kav feem ntau muab faib ua seamless steel kav thiab welded kav. Raws li cov txheej txheem sib txawv, cov kav dej welded tau muab faib ua high-frequency ncaj seam vuam (ERW) thiab submerged arc vuam.
Submerged arc welded kav yog muab faib ua kauv welded kav thiab ncaj seam welded kav raws li cov yeeb nkab diameters sib txawv.
