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ASME B16.5 ASTM A182 F53 GR2507 Lap Joint Flange CL600 100NB
8YRSZhejiang Footo Pipe Fitting Manufacturing Co., Ltd.
Color Coated Steel Coil RAL9002 White Prepainted Galvanized Steel Coil
5YRSTianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.
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