单向阀型号：
HR-003 30
HR-003/2
HR-004 30
HR-004/8 30
HR-011 11
HR-011/2 11
HR-012 50
HR-012 50 /PE
HR-012/2 50
HR-012/4 50
HR-012/8 50
HR-013 50
HR-013/2 50
HR-013/4 50
HR-014 50
HR-014/2
HR-014/4 50
HR-016 11
JPR-212 16
JPR-212 16/WG
JPR-213 16
JPR-214 16
JPR-312 16
JPR-313 16
KR-003 35
KR-003/4 35
KR-004 35
KR-011 30
KR-011/2 30
KR-011/4 30
KR-012 35
KR-012/2 35
KR-012/4 35
KR-012/8 35
KR-013 35
KR-013/2 35
KR-013/4 35
