上(shang)海勝(sheng)緒(xu)電(dian)(dian)氣(qi)有限公司(si)SRY2-3直熱(re)式電(dian)(dian)加熱(re)器(qi)管狀電(dian)(dian)加熱(re)器(qi)是在SRY2普(pu)通(tong)型管狀電(dian)(dian)加熱(re)器(qi)的(de)(de)基礎上(shang),改進(jin)了它(ta)的(de)(de)接線裝置及加熱(re)結構,采用(yong)三支加熱(re)管為(wei)一(yi)組。