bottle grade PET chips

• 瓶级聚酯切片

bottle grade PET chips的用法和样例：

例句

1. PTI has mainly worked with bottle grade PET but it envisions uses for polylactic acid and polyethylene naphthalate.
   印度主要与瓶级聚酯但设想用途的聚乳酸和聚萘二甲酸乙二醇酯。