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- HB 4-21-2002 扩口式A型三通管接头
- HB 4-21-2002
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- HB 4-21-1999 Ａ型三通管接头
- HB 4-21-1999
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- HB 4-20-2002 扩口式B型三通管接头
- HB 4-20-2002
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- HB 4-20-1983 Ｂ型三通管接头
- HB 4-20-1983
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- HB 4-20-1999 Ｂ型三通管接头
- HB 4-20-1999
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- HB 4-19-2002 扩口式E型三通管接头
- HB 4-19-2002
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- HB 4-19-1983 Ｅ型三通管接头
- HB 4-19-1983
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- HB 4-19-1999 Ｅ型三通管接头
- HB 4-19-1999
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- HB 4-18-1999 Ｄ型三通管接头
- HB 4-18-1999
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- HB 4-18-2002 扩口式D型三通管接头
- HB 4-18-2002