Launching products is necessary explain that:

For the customer to be knwoledgeable for the product.

The new product feature

Its importance

Specifications

He differs from other

A product launch serves various functions for a company, one of which is to give customers the opportunity to purchase the new product. It also aids a business in creating anticipation for a product, gathering useful input from early users, and gaining momentum and industry awareness.

The question is not clear to me, if you want to do business with your products then it has to be launched in the market  and it is necessary too. 

You mentioned "Products" you want to launch many products at a time.

Anyhow, Thanks 

The question is not really clear! If you mean the importance of launching new product, I would say that launching a new product is a strategic decision usually takes by upper level management due to its consequences. It may happen when expanding business or opening a new line of production,therefore before launching a new product you should take in consideration:

1. Financial situation

2. Competition

3. Customers' trends

4. Customer service

A product launch serves many purposes for an organization— giving customers the chance to buy the new product is only one of them. It also helps an organization build anticipation for the product, gather valuable feedback from early users, and create momentum and industry recognition for the company.