WJ41H波紋管截止閥 J61Y鍛鋼焊接截止閥（fá） J41W鍛鋼法蘭截止（zhǐ）閥 J15W鍛鋼Y型截止閥 J11W鍛鋼截止閥 J41B氨用截止閥 DJ41Y低溫截止閥 J961H/Y電（diàn）動焊接截止閥 NKJ61H/Y真空截止閥 BJ45H/W角式保溫截（jié）止閥 BJ41W保溫截止閥 J44H高壓（yā）角式截止閥
