薄壁精抽毛细铝管 百种规格量大联系客服 外径1.522.533.5 当天发货 44.555.566.5 77.588.59-30mm 5mm 4mm 3mm 2.5mm 用 13288887085 壁厚0.20.250.30.4 0.50.71mm 可开发票