精品20#碳鋼304不銹鋼單雙頭外螺紋短接短管短節(jié) 外螺紋短節(jié) 雙頭外螺紋短節(jié) 碳鋼外螺紋短節(jié) 單頭外螺紋短管 雙頭外螺紋短管
尺寸標準參考參數(shù): DN8 = 2分 = 1/4 =(絲扣直徑)12mm
DN10 = 3分 = 3/8 =(絲扣直徑)15mm
DN15 = 4分 = 1/2 =(絲扣直徑)20mm
DN20 = 6分 = 3/4 =(絲扣直徑)25mm
DN25 = 1寸 = 1 =(絲扣直徑)32mm
DN32 = 1.2寸 = 1 1/4 =(絲扣直徑)40mm
DN40 = 1.5寸 = 1 1/2 =(絲扣直徑)48mm
DN50 = 2寸 = 2 =(絲扣直徑)60mm
DN65 = 2.5寸 = 2. 1/2=(絲扣直徑)75mm
DN80 = 3寸 = 3 =(絲扣直徑)90mm
DN100 = 4寸 = 4 =(絲扣直徑)112mm