BS 5440-1-2008 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1s

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标准类别：国外标准

关键词： BS 5440 2008 Flueing and

标准简介

BS 5440-1-2008 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) – Part 1 Specification for installation of gas appliances to chimneys and for ma