-
- GB 9116.23-1988 PN10.0MPa(100bar)环连接面带颈平焊钢制管法兰
- GB 9116.23-1988
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- GB 9116.22-1988 PN5.0MPa(50bar)环连接面带颈平焊钢制管法兰
- GB 9116.22-1988
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- GB 9116.20-1988 PN10.0MPa(100bar)榫槽面带颈平焊钢制管法兰
- GB 9116.20-1988
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- GB 9116.19-1988 PN5.0MPa(50bar)榫槽面带颈平焊钢制管法兰
- GB 9116.19-1988
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- GB 9116.18-1988 PN4.0MPa(40bar)榫槽面带颈平焊钢制管法兰
- GB 9116.18-1988
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- GB 9116.17-1988 PN2.5MPa(25bar)榫槽面带颈平焊钢制管法兰
- GB 9116.17-1988
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- GB 9116.15-1988 PN10.0MPa(100bar)凹凸面带颈平焊钢制管法兰
- GB 9116.15-1988
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- GB 9116.14-1988 PN5.0MPa(50bar)凹凸面带颈平焊钢制管法兰
- GB 9116.14-1988
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- GB 9116.13-1988 PN4.0MPa(40bar)凹凸面带颈平焊钢制管法兰
- GB 9116.13-1988
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- GB 9116.12-1988 PN2.5MPa(25bar)凹凸面带颈平焊钢制管法兰
- GB 9116.12-1988