Intertubi 供应产品 全部分类
BUTT WELDING FITTINGS ASME B16.9
BUTT WELDING FITTINGS EN 10253
FORGED FLANGES EN 1092-1 AND COLLARS
THREADED FITTINGS ISO-4144 E EN 10241
VALVES AND STRAINERS
SEAMLESS PIPES ASME B36.19 - ASTM A-312
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