球墨(mo)(mo)鑄鐵管(guan)配件(jian)(jian)全(quan)承(cheng)(cheng)(cheng)四(si)通(tong)(tong) 全(quan)承(cheng)(cheng)(cheng)四(si)通(tong)(tong)是球墨(mo)(mo)鑄鐵管(guan)件(jian)(jian)中(zhong) 常(chang)見(jian)的(de)一種,又叫全(quan)承(cheng)(cheng)(cheng)十字管(guan),四(si)承(cheng)(cheng)(cheng)十字管(guan),四(si)承(cheng)(cheng)(cheng)四(si)通(tong)(tong)。全(quan)承(cheng)(cheng)(cheng)四(si)通(tong)(tong)樣式是四(si)邊承(cheng)(cheng)(cheng)口。全(quan)承(cheng)(cheng)(cheng)四(si)通(tong)(tong)屬于T型接(jie)口球墨(mo)(mo)配件(jian)(jian),全(quan)承(cheng)(cheng)(cheng)四(si)通(tong)(tong)是管(guan)網安裝工程中(zhong)必備的(de)管(guan)件(jian)(jian)。”