-
- HB 4-11-1983 Ｃ型弯管接头
- HB 4-11-1983
-
- HB 4-10-1999 Ｂ型弯管接头
- HB 4-10-1999
-
- HB 4-10-2002 扩口式B型弯管接头
- HB 4-10-2002
-
- HB 4-10-1983 Ｂ型弯管接头
- HB 4-10-1983
-
- HB 4-9-1983 拧入式变径直通管接头
- HB 4-9-1983
-
- HB 4-9-1999 拧入式变径直通管接头
- HB 4-9-1999
-
- HB 4-9-2002 扩口式拧入式变径直通管接头
- HB 4-9-2002
-
- HB 4-8-1983 拧入式直通管接头
- HB 4-8-1983
-
- HB 4-8-1999 拧入式直通管接头
- HB 4-8-1999
-
- HB 4-8-2002 扩口式拧入式直通管接头
- HB 4-8-2002