碳钢内丝四通BSPTNPT140KG高压管件2000LB螺纹20#A105天佑管业503
¥44.2
33
¥80
0
¥97
¥79
¥56.4
16
¥53.5
25
¥11.3
¥51
8
¥40
¥4
¥1