片语
polycaprolactam resin聚己内酰胺树脂
polycaprolactam fibre卡普纶
luminous polycaprolactam发光聚己内酰胺
polycaprolactam cas聚己内酰胺
polycaprolactam chips聚己内酰胺切片
PCL polycaprolactam聚已内酰胺
polycaprolactam fibres聚己内酰胺纤维
polycaprolactam powder聚卡普纶粉
polycaprolactam fiber聚己内酰胺纤维