Koyilo iliyonse ya chubu ndi kutalika kosalekeza kopanda ma weld a orbital.
Koyilo iliyonse ya chubu imayesedwa ndi hydrostatic ndi kukakamiza komwe kumalunjika.
Mayesowa atha kuchitiridwa umboni pamalowa ndi oyang'anira chipani chachitatu (SGS, BV, DNV).
Mayeso ena ndi mayeso a eddy pano, mankhwala, flattening, flaring, tensile, zokolola, elongation, kuuma kwa zinthu zakuthupi.
Meilong Tube imapereka machubu opindika muzitsulo zosiyanasiyana zosapanga dzimbiri zosapanga dzimbiri, ma aloyi a nickel.Tili ndi chidziwitso chambiri pakupanga zinthu zatsopano komanso zatsopano m'gawoli, kuyambira kupita patsogolo kwaukadaulo komwe kumafunikira pakukula kwa nyanja zam'madzi mu 1999 mpaka zovuta zamadzi akuya masiku ano.