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- HB 4-23-1999 不对称Ａ型三通管接头
- HB 4-23-1999
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- HB 4-22-1999 不对称Ｂ型三通管接头
- HB 4-22-1999
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- HB 4-22-1983 不对称Ｂ型三通管接头
- HB 4-22-1983
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- HB 4-22-2002 扩口式不对称B型三通管接头
- HB 4-22-2002
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- HB 4-21-1983 Ａ型三通管接头
- HB 4-21-1983
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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