2)乙炔减压阀YQE-213,YQEG-224,YQE-752;
3)氢气减压阀Y-9,Y-11,Y-30,Y-342,Y-352,Y-370;
4)氮气减压阀YQD-6,YQD-11,YQD-13,YQD-14,YQD-30,YQD-370;
5)氩气减压阀YQAr-731L,YQAr-731L1,YQAr-720;
6)氨气减压阀YQA-401,YQA-441;
7)耐腐蚀减压阀YQN系列;
8)空气减压阀YQK-3,YQK-6,YQK-12,YQK-14,YQK-16,YQK-352,YQKG-490,525Q44-22,525Q44-39,525Q44-57,525Q44-73,525Q44-74,525Q44-84;
9)海水减压阀525Q44-77,525Q44-78;
10)二氧化碳减压阀YQT-731,YQT-341,YQT-731L,YQTS-711;
11)笑气减压阀YQX-741,YQX-740A;
12)丙稀减压阀 YQBX-213,YQKB-325;
13)丙烷减压阀YQW-213,YQW-2;
14)蒸汽减压阀YQZ-13;
15)双级减压阀YQ-1,YQ-2,YQ-3;
16)氦氧减压阀YQHY-14。