活接,活接头,不锈钢活接,卫生级活接,卫生活接,食品级活接,DIN活接,3A活接,IDF活接,DS接头,RJT活接,BSM活接,由任,由任组,不锈钢由任,卫生级由任,卫生由任,食品级由任,DIN由任,3A由任,IDF由任,DS接头,RJT由任,BSM由任,螺母,螺纹接头,平接头,长型接头,膨胀型平接头,带链条盲螺母,圆弧型平接头,台阶型平接头,六角螺母,16A堵头,盲螺母,雄头,云头,304活接,316L活接,304由任,316L由任