Seamless simbi machubhu epasi uye epakati pressure boilers (GB3087-2018) ndeyemhando yepamusoro kabhoni yekugadzira simbi inopisa-yakakungurutswa uye inotonhora-yakadhonzwa (yakakungurutswa) isina musono machubhu, ayo anoshandiswa kugadzira anopisa kupisa pombi, kufashaidza mapombi emvura kune akasiyana siyana epasi uye epakati pressure boilers uye anopisa anopisa pombi, hombe dzehutsi, pombi diki dzeutsi uye arch zvidhinha pombi dzemaboilers e locomotive.

Migumo yepombi yesimbi inofanira kunge iri perpendicular kune axis yepombi yesimbi, uye burrs inofanira kubviswa.GB3087yakajairika simbi pombi inowanzogadzirwa negumi, 20 inopisa yakakungurutswa kana kutonhora yakakungurutswa yakakwira mhando kabhoni structural simbi, kazhinji inoda.water pressuree, crimping, flaring, flatteninguye zvimwe zviedzo kuti ive nechokwadi chemhando yechigadzirwa uye kuita.