H41B氨用止回阀

H41N氨用止回阀

H42N氨气立式止回阀

J42B角式氨用截止阀

J11B/F内螺纹氨用截止阀

J21B/J21F外螺纹氨用截止阀

Q41B/F/N/H/Y氨用球阀

H42B（H44B）H42B（H44B）氨用止回阀

J14BJ14B角式内螺纹氨用截止阀

J24BJ24B角式外螺纹氨用截止阀

J41B（F）J41B（F）方法兰氨用截止阀

J41BJ41B氨用截止阀