38mm 45g Neck Size Pet Plastic Preforms for Water & Drink Bottles Available Made in China. Custom Neck Size & Pattern: Neck size and pattern are custom made to meet specific design requirements. Wide Weight Range Options: Available in various weights including 14g, 16g, 17g, 18g, 21g, 24g, 27g, 28g, 32g, and 35g. OEM & ODM Service: Full OEM and ODM services available for customized packaging solutions. SGS & ISO9001 Certified: Product meets SGS and ISO9001:2008 certification standards for quality assurance. Fast Production Lead Time: Mass production lead time is 20-25 days after deposit and sample confirmation. Free Sample Availability: Free samples provided for checking (5-10 pcs), buyer pays delivery cost. 100% Finished Product Inspection: Strict QA/QC with 35 inspectors performing 100% visual and function inspection. Flexible Payment Terms: Supports T/T, Western Union, and Money Gram for convenient transactions.