圆形、椭圆形和柔性管道|沙特标准|SASO-2671
SASO-2671
HVAC Duct Construction Standards Metal and Flexible – Part 3: Round, Oval, and Flexible Duct
暖通空调管道结构标准——金属和柔性管道——第3部分:圆形、椭圆形和柔性管道
Applying Type : Standard Regulation
Standard Year : 2007
Approval Year : 2007