There are many printing companies that offer hardcover book printing services. Here are a few options to consider:

Shenzhen Mainland Printing Co.,Ltd is one of book printing companies located in China, which can provide a wide range of book printing services, such as childrens book printing, art book printing, magazine printing, photography book printing,  comic book printing, notebook printing and so on paper products . 

Hardcover Book Printing With Gold Edge

1. IngramSpark: This is a popular self-publishing platform that offers hardcover book printing services. They have a user-friendly online platform where you can upload your manuscript and cover design, choose from various options such as paper type, trim size, and cover finish, and place an order for printing. They also offer distribution services, so you can sell your book on various online bookstores.

2. Blurb: This is another online self-publishing platform that offers hardcover book printing services. They offer various options such as paper type, trim size, cover material, and cover finish. You can upload your manuscript and cover design to their platform and place an order for printing. They also offer distribution services and have an online bookstore where you can sell your book.

3. BookBaby: This is a self-publishing platform that offers a range of book printing services, including hardcover book printing. They offer various options such as paper type, trim size, cover material, and cover finish. You can upload your manuscript and cover design to their platform and place an order for printing. They also offer distribution services and have an online bookstore where you can sell your book.

4. Lulu: This is another self-publishing platform that offers hardcover book printing services. They offer various options such as paper type, trim size, cover material, and cover finish. You can upload your manuscript and cover design to their platform and place an order for printing. They also offer distribution services and have an online bookstore where you can sell your book.

These are just a few examples of companies that offer hardcover book printing services. It's always a good idea to compare pricing and services before choosing a printing company to work with. You may also want to consider factors such as turnaround time, quality of the finished product, and customer service when making your decision.