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- CB 3058-1979 内螺纹球铁直通截止止回阀
- CB 3058-1979
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- CB 3057-1979 内螺纹球铁直通止回阀
- CB 3057-1979
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- CB 3056-1979 内螺纹球铁直通截止阀
- CB 3056-1979
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- HB 4-8-1983 拧入式直通管接头
- HB 4-8-1983
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- HB 4-8-1999 拧入式直通管接头
- HB 4-8-1999
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- HB 4-8-2002 扩口式拧入式直通管接头
- HB 4-8-2002
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- HB 4-6-1983 带凸缘直通管接头
- HB 4-6-1983
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- HB 4-6-1999 带凸缘直通管接头
- HB 4-6-1999
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- HB 4-6-2002 扩口式带凸缘直通管接头
- HB 4-6-2002
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- HB 4-5-1999 Ａ型直通管接头
- HB 4-5-1999