plastic film continuous sealing machine 塑料薄膜连续封口机 plastic film extruder 塑料薄膜挤出机 plastic film for wrapping 包装用塑料薄膜 ..
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In 1991 a boss decreed that Gruber couldn't buy a machine called an extruder, which turns plastic pellets into clear film.
FORBES: Shucking Petroleum
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