I-Shandong Steel Pipe Factory yazisa umahluko phakathi kombhobho wentsimbi ongenamthungo kunye nombhobho wentsimbi ochanekileyo

I-Shandong Steel Pipe Factory yazisa umahluko phakathi kombhobho wentsimbi ongenamthungo kunye nombhobho wentsimbi ochanekileyo
I-1, iimpawu eziphambili zepayipi yensimbi engenamthungo ayikho i-welding seam, inokumelana noxinzelelo olukhulu.Imveliso ingaba rhabaxa kakhulu okanye ukucofa okubandayo.
2. Ipayipi yensimbi echanekileyo yimveliso evele kwiminyaka yamuva.Ikakhulu inokunyamezela okungqongqo kunye noburhabaxa kumngxuma wangaphakathi kunye nemilinganiselo yodonga lwangaphandle.