不锈钢多孔材料
stainless steel porous material
多孔不锈钢分配版
multi-perforated stainless disc
不锈钢钢笔
fountain pen with stainless steel nib
不锈钢-钢复合板
stainless steel steel clad plate
不锈钢钢丝绕制筛管
stainless steel wire wrapped screen
高氮奥氏体不锈钢钢
high nitrogen austenitic stainless steel
碳钢304不锈钢碳钢复合板
Carbon - 304 Stainless - Carbon Steel Clad Plate
碳钢-不锈钢复合管
carbon steel-stainless steel clad-pipe
不多不少
neither more nor less than
多孔多并苯半导体
porous polyacenic semiconductor