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- HB 5575-1983 柱面弯管接头
- HB 5575-1983
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- HB 5574-1983 柱面弯管接头
- HB 5574-1983
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- HB 5573-1983 拧入式弯管接头
- HB 5573-1983
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- HB 5572-1983 拧入式弯管接头
- HB 5572-1983
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- HB 5570-1983 弯管接头
- HB 5570-1983
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- HB 5569-1983 弯管接头
- HB 5569-1983
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- HB 5568-1983 拧入式直通管接头
- HB 5568-1983
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- HB 5567-1983 拧入式直通管接头
- HB 5567-1983
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- HB 5566-1983 拧入式直通管接头
- HB 5566-1983
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- HB 5565-1983 直通管接头
- HB 5565-1983