If you are interested in ordering FDA approved Chinese manufacturer PE backsheet S cut adult diapers for elderly people, here are some custom details you may need to provide:

1. Order quantity: Depending on the manufacturer's minimum order requirements, you may need to specify how many adult diapers you want to order.

1. Size: Adult diapers come in a range of sizes, so you will need to specify the size you require. S cut adult diapers are designed for individuals with smaller body types, so it's important to ensure the size you choose is appropriate for your needs.

1. Absorbency level: Adult diapers come with different levels of absorbency, ranging from light to heavy. You may need to specify the absorbency level you require based on your specific needs.

1. Backsheet material: The backsheet is the outer layer of the adult diaper that comes in contact with clothing. PE backsheet is a popular option that provides a waterproof barrier. However, if you have specific material preferences, you will need to communicate this to the manufacturer.

1. Closure type: Adult diapers typically feature either adhesive tabs or adjustable Velcro-style tabs to secure the diaper in place. You may need to specify the closure type you prefer.

1. Packaging requirements: If you have specific packaging requirements, such as individual packaging or bulk packaging, you will need to communicate this to the manufacturer.

1. Delivery details: You will need to specify the delivery address and desired delivery date for your order.