精拉拉丝机
fine wire drawing machine
NiehoffM5拉丝机
Niehoff M5 wire-drawing machine
Q195-1G拉丝钢
Q195-1G Pulled Wire Steel
伯妮丝拉娃·尼金斯卡
2nd harmonic restrain theory
池窑拉丝
Pool furnace drawing
furnace fiber-forming
furnace fibre-forming
direct-melt process for drawing glass fiber
fiber forming by direct-melt process
大叶拉拉藤
Galium pseudo-asprellum Mak