GOST12820,12821 法兰
管 件：美标、日标、德标、国标 法兰、弯头、三通、异径管、管帽等.
规 格：DN10MM--820MM.
厚 度：SCH20--SCH160.
材 质：ASTM A234 WPB、A53、A106、ST37、STPG38、 20#、Q235、20G、16MN等.
标 准：ANSI B16.9/16.28、ASME、GB/T 12459、DIN 2605 / 2615/2616、JIS P2311 / 2312、ASME B36.10M-1996 etc
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GOST12820,12821 法兰 | 管 件：美标、日标、德标、国标 法兰、弯头、三通、异径管、管帽等. 规 格：DN10MM--820MM. 厚 度：SCH20--SCH160. 材 质：ASTM A234 WPB、A53、A106、ST37、STPG38、 20#、Q235、20G、16MN等. 标 准：ANS... |
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法兰 | 管 件：美标、日标、德标、国标 法兰、弯头、三通、异径管、管帽等. 规 格：DN10MM--820MM. 厚 度：SCH20--SCH160. 材 质：ASTM A234 WPB、A53、A106、ST37、STPG38、 20#、Q235、20G、16MN等. 标 准：ANS... |
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