DSAW(Bututun mai gefe biyu na karkace mai cike da baka mai waldadden bututu)halaye: tsarin samar da bututu mai welded yana da sauƙi, babban inganci, ƙananan farashi, haɓaka mai sauri.Ƙarfin bututun welded gabaɗaya ya fi dsaw bututu kuma yana iya rage samar da billet na babban bututu mai diamita, Hakanan zaka iya amfani da nisa iri ɗaya na samar da billet na diamita daban-daban na bututu.Koyaya, idan aka kwatanta da tsayin tsayin bututu madaidaiciya madaidaiciya, tsayin Weld ya karu da 30 zuwa 100%, da ƙarancin samarwa.

DSAW (Biyu-gefe karkace submerged baka welded bututu) ana amfani da ko'ina a cikin yanayi gas, man fetur, sunadarai, wutar lantarki, dumama, magudanar ruwa, tururi dumama, hydropower penstock, thermal ikon, ruwa da sauran dogon nisa bututu, tara, dredging, gadoji. , Karfe da sauran fannonin injiniya.