The bag of those things: the difference between the new material and secondary material
Bag this thing, sounds simple, but in fact there are a lot of doors. Today we will talk about the difference between “new material” and “secondary recycled material”.
New material: simple and clear

The “new material” is actually the first use of the material, there is nothing to say, direct, simple, clear. Just like the first time you buy a car, it must be brand new, right?
Secondary Recycled Material: Recycling

The “secondary recycled material” is much more complicated. Simply put, this material has been used once and then recycled. Sounds environmentally friendly, but the reality may not be so rosy.
Odors and cracking: Beware of the pitfalls

Bags that have been used with secondary materials may have an odor and are prone to cracking. Many manufacturers choose this material to save money. You can search the internet for many discussions about secondary materials.
Complex sources: varying quality

The source of secondary material is also complex, it may be the waste from the production of plastic bags, household waste plastic, industrial plastic and so on. The color varies, transparent white may be slightly yellow.
Personal choice: new material is more assured

Personally, I think it's better to choose brand-new materials for the long-term use of birds. After raising birds, I realized that birds are the cheapest, nourishing pills, villas, bird cages, click buy. I have a Gentoo at home, so I bought 4001 this bird cage. I didn't realize it would be so troublesome to clean up the grains and poop every day, so I thought of using a film cover. It turned out that it can be done like this! My family makes bags, so I took a look to see which one would fit.
Adaptable versions: for different needs

That's how we came up with the 4001 adapted version. When it first came out, there was only 4001, and many people asked if there were any other models that would fit, so we customized it one batch at a time. The material used is brand new, the thickness is 1.8C. 1.8C is 1.8C (I have bought 1.7C, but only 0.9C when I use the card code and weigh it). Because most bird cages are drawer type with small gaps, choosing a thin one is easy to have problems with scratching and cracking. So one step to choose a thick one, but not too thick, too thick will be more jammed. Finally decided to press 4001 model 1.8C.
Summarize: what suits you is the best

What works, what solves your problem, what's in your budget, and what saves you time by not needing to agonize, is right for you. Price and value are always proportional. A thousand people have a thousand Hamlets, everyone's choice is different, understanding and respect is good.
Self-certification once: sincere

Finally, self-certification! The bags in our house are really made with heart and quality is guaranteed. I hope you can find the right bag for you!