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Some agricultural composite membranes suffer from issues like perforations, cracks, and other quality defects, which can lead to a significant number of crop seedlings being planted in greenhouses with compromised protection. These faulty films are often either substandard products or outdated inventory items. Poor-quality agricultural films lose their protective function over time, making it essential for everyone to choose plastic films that are as close to the production date as possible.
In addition to checking the production date, it's important to select films that are flat, bright, and have consistent thickness and transparency. Avoid purchasing thin films that show watermarks, cloud-like patterns, or have air bubbles, holes, or cracks. These signs indicate poor quality and may affect the film’s performance. The effective quality assurance period for agricultural films is typically one year, so consumers should aim to buy films that are freshly produced and avoid old stock products that may have already degraded.
When purchasing agricultural films, it's advisable to go through official agricultural companies or authorized dealers. Always sign a proper contract and keep the receipt or invoice, as this will help protect your rights in case any issues arise later. Taking these precautions ensures better quality and long-term benefits for your farming activities.