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规格

根据ASME B 36.10M标准和 ASME B 36.19M标准

根据ASME B16.9M标准

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Tectubi Tianjin Fittings Co. Ltd – Sede legale / Registered office: No. 11, Liujing Rd, Developing Zone of Dong Li, Tianjin 300300, China
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