Hi,
What can potentially be done is to have the main product as a category, and in this category add the parts.
Like that, one product is one part, and you can have the same display than on the screenshot.
Example:
Product A (category)
Product A part 1 (product in the Product A category)
Product A part 2 ...
Or you could also have a characteristic and set the "characteristic display method" option of the HikaShop configuration to "list" so that you would get a product page looking like your screenshot when adding a characteristic to the product.