Oyenera kwa ma diameter ang'onoang'ono a chitoliro muzochitika zotsika komanso zotsika kwambiri, ma flanges a socket-weld amakhala ndi kugwirizana komwe mumayika chitoliro mu flange ndiyeno muteteze kugwirizana ndi chowotcherera chimodzi cha multi-pass fillet.Izi zimapangitsa kuti kalembedwe kameneka kakhale kosavuta kuyika kuposa mitundu ina yowotcherera ya flange ndikupewa malire okhudzana ndi ulusi.