覆塑銅管
YS/T451-2002覆塑銅管選用標(biāo)準(zhǔn)
公稱通徑 DN (mm)
公稱外徑 O.D. (mm)
壁厚/mm Thickness(mm)
齒形環(huán) Gear-Shaped Loop (mm)
平行環(huán) Parallel? Loop (mm)
發(fā)泡形 Foam? (mm)
極限偏差 Maximum? Deviation? (mm)
定尺長度 Length? (mm)
15