球(qiu)墨鑄鐵(tie)管(guan)(guan)配(pei)件(jian)全(quan)盤四(si)通球(qiu)墨鑄鐵(tie)管(guan)(guan)配(pei)件(jian)全(quan)盤四(si)通是(shi)球(qiu)墨鑄鐵(tie)管(guan)(guan)件(jian)中 常見的一種,又叫(jiao)全(quan)承(cheng)(cheng)十(shi)(shi)字(zi)(zi)管(guan)(guan),四(si)承(cheng)(cheng)十(shi)(shi)字(zi)(zi)管(guan)(guan),四(si)承(cheng)(cheng)四(si)通。全(quan)承(cheng)(cheng)四(si)通樣式是(shi)四(si)邊(bian)承(cheng)(cheng)口(kou)。全(quan)承(cheng)(cheng)四(si)通屬于(yu)T型(xing)接口(kou)球(qiu)墨配(pei)件(jian),全(quan)承(cheng)(cheng)四(si)通是(shi)管(guan)(guan)網安裝工程中必備的管(guan)(guan)件(jian)。”