1. Ukuhlolwa kwembonakalo yokufakelwa kwe-elbow: ngokuqhelekileyo, ukuhlolwa okubonakalayo yindlela ephambili. Ngokujonga inkangeleko, kufunyaniswe ukuba imbonakalo ye-weld iziphene zemibhobho edityanisiweyo ye-elbow fittings zibonwa ngamaxesha angama-5-20 wokukhulisa iglasi ngamanye amaxesha. Okunje nge-undercut, porosity, weld bead, ...
Funda ngokugqithisileyo