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- QJ 1642.10-1989 24°导管连接件 24°变径直通接头
- QJ 1642.10-1989
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- HB 4-9-1983 拧入式变径直通管接头
- HB 4-9-1983
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- HB 4-9-1999 拧入式变径直通管接头
- HB 4-9-1999
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- HB 4-9-2002 扩口式拧入式变径直通管接头
- HB 4-9-2002
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- HB 4-7-1999 变径直通管接头
- HB 4-7-1999
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- HB 4-7-1983 变径直通管接头
- HB 4-7-1983
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- HB 4-7-2002 扩口式变径直通管接头
- HB 4-7-2002
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- HB 8185～8188-2002 扩口式带收紧螺母变径直角管接头
- HB 8185～8188-2002
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- HB 8173～8176-2002 扩口式带收紧螺母变径直通管接头
- HB 8173～8176-2002
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- HB 5689-5692-1983 拧入式变径直通管接头
- HB 5689-5692-1983