不锈钢套钢笔
fountain pen with stainless steel cap
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
不锈钢套铱金笔
iridium fountain pen with stainless cap
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
000Cr25Ni20不锈钢
000Cr25Ni20 stainless steel