KPI耐酸胶泥及混凝
钢板耐盐雾
180000DWT 散货船
随时看帖、分享到朋友圈
UID:46154
UID:20475
myarc:400指的型钢的尺寸,参见这里http://www.51fangfu.com/read-htm-tid-438.html (2019-09-11 18:13)