接頭(tou)主體部位采用(yong)(yong)黃銅鍍鎳制成,夾緊件采用(yong)(yong)尼龍塑料(PA)制成,密(mi)封(feng)件和O型(xing)密(mi)封(feng)圈(quan)均(jun)采用(yong)(yong)