Zhanjiang Fengqi Plastic Product Co., Ltd.

Zhanjiang Fengqi Plastic Product Co., Ltd. is based in China and lists 30 active products under the Packaging Items & Containers category. The catalogue consists mainly of various packing list envelopes, self‑adhesive envelopes, and film‑based document wallets, each identified by product name such as “PE Bag Packing Slip Envelope”, “Clear Self Adhesive Packing List Envelope”, and “ISO Certified Self Adhesive Zipper Lock Bag”. All items are described as either polyethylene (PE) or polypropylene (PP) based, with options for pressure‑sensitive adhesives and waterproof printing. The supplier’s portfolio also includes specialty formats like perforated line envelopes, UPS and DHL branded slip envelopes, and zip‑lock bags designed for secure document transport.

The product set includes both standard size envelopes (e.g., 7.5 × 5.5 inches, 4.5 × 5.5 inches) and custom dimensions such as 5 × 5.5 inches, as well as film wallets that combine PE or PP film with self‑adhesive features. Several entries reference ISO certification for specific items, indicating that at least some products have been produced to meet ISO‑related quality documentation. Overall, the list reflects a focus on lightweight, flexible packaging solutions used for shipping invoices, packing lists, and other trade documents.

The catalogue lists 30 distinct envelope and film wallet types, ranging from plain packing list envelopes to pressure‑sensitive and waterproof variants. Materials mentioned are polyethylene (PE) and polypropylene (PP), both common in flexible packaging for their moisture resistance and durability. In the broader industry, PE envelopes are typically produced in low‑density (LDPE) or linear low‑density (LLDPE) grades with thicknesses from 20 µm to 80 µm, while PP films often use B‑type or C‑type grades with similar thickness ranges. Self‑adhesive envelopes usually employ pressure‑sensitive acrylic or rubber‑based adhesives that retain tack over a wide temperature range, and waterproof printed envelopes are commonly coated with a thin polyester or polypropylene laminate to protect printed information.