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- HB 5989-5991-2008 21MPa无扩口B型拧入式变径直通管接头
- HB 5989-5991-2008
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- HB 5986-5988-2008 21MPa无扩口A型拧入式变径直通管接头
- HB 5986-5988-2008
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- HB 5983-5985-2008 21MPa无扩口变径直通管接头
- HB 5983-5985-2008
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- HB 7849-2008 28MPa无扩口B型拧入式变径直通管接头
- HB 7849-2008
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- HB 7848-2008 28MPa无扩口A型拧入式变径直通管接头
- HB 7848-2008
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- HB 7847-2008 28MPa无扩口变径直通管接头
- HB 7847-2008