Square thiab Rectangular Welded Tubes: Lawv pom cov qauv kev ruaj khov thiab muaj peev xwm thauj khoom, ua rau lawv tsim nyog rau cov ntawv thov uas yuav tsum tau ua haujlwm siab thiab thauj khoom. Tsis tas li ntawd, lawv cov tsos zoo nkauj thiab zoo nkauj tau ua rau lawv siv dav hauv kev tsim kho thiab kho kom zoo nkauj.
High-frequency Welded Round Tubes: Siv cov txheej txheem vuam ntau zaus, cov raj no khav theeb zoo vuam zoo nrog vuam seam zog mus txog ntawm cov khoom niam txiv. Cov txheej txheem vuam kuj tseem tshem tawm qhov xav tau ntawm cov khoom siv hlau, txo cov nqi tsim khoom. Tsis tas li ntawd, high-frequency welded round tubes pom zoo corrosion kuj thiab qaug zog kuj.
