Use:制冷、制热、换热风机管、油管、水道管、气管、热交换器
State:软态
Standard:GB/T17791 GB/T1527 GB/GB/T 18033-2017/T450 ASTMB280 ASTMB68 ASTMB75 EN12735 AS1571 JISH3300 EN1057
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