Blog

Decode Uniseel’s SGS FDA Test Report (TAOPC26004208103) for silver Unishell caps. Learn why our 'ND' (Not Detected) result under FDA 21 CFR 175.300 ensures zero chemic...

A technical guide to IHS, PS, and EPE liners for PET and Glass jars. Learn about Uniseel’s SGS-verified EU FCM compliance, BPA-free standards, and how ±0.1mm cap preci...

Compare bottle cap types: Ribbed, Smooth, and Unishell closures. Discover why Uniseel's tinplate Unishell caps offer superior ovality control and ±0.1mm precision for ...

Explore Uniseel’s technical drawings for Unishell caps (38mm-89mm). Learn how our ±0.1mm tolerance and strict T/E/H dimension standards ensure 100% compatibility with ...

Uniseel’s manufacturing is backed by ISO 9001:2015 (Reg. 07625Q1617R0S-ZJ/001) and a robust patent portfolio, including ZL 2023 2 3287198.X. We ensure ±0.1mm precision...

Discover Uniseel’s 30-year engineering legacy. Learn how our Shengxiang manufacturing base combines ±0.1mm precision with an ISO Class 7 cleanroom to deliver high-auth...