문제 및 해결책
일반적인 플라스틱 재료 문제에 대한 실질적인 답변
Silver streaks on the preform surface
Preform moisture absorption during storage (re-drying required)
Preform contamination (foreign matter)
Bottle body whitening after stretching (stress whitening)
Insufficient rigidity of the product
Low light transmittance of the product