JIS B 8570-2-2013 冷水和热水用仪表.第2部分:交易或认证用测量仪表
资料介绍
JIS B8570-2-2013 冷水和热水用仪表.第2部分:交易或认证用测量仪表
Meters for cold water and hot water -- Part 2: Measuring instruments used in
Meters for cold water and hot water -- Part 2: Measuring instruments used in