One could buy Wedgewood China on a wide variety of internet sites. These include, but are not limited to eBay, the official Wedgewood site, and the WWRD site.
wedgewood
The Blue Willow pattern is a well-known pattern used in ceramic housewares, such as plates, pitchers and platters. Vintage manufacturers of Blue Willow dishware include Josiah Spode and Dutch East India Company. Presently, Wedgewood Group and Churchill China produce the pattern.
Wedgewood has been making fine English china tableware, crystal and glass drinkware for over 250 years. It is available for purchase in the United States at Macy's and Bed Bath and Beyond. One can also find some vintage Wedgwood pieces for sale on eBay.
Josiah Wedgewood was a famous potter. He started his career out as an apprentice to his older brother, but then he went on to partnering up with another potter/budding businessmen and went on to be very rich & famous during the industrial revolution.
If one has broken some china pieces and needs to find a replacement it is often possible to find the replacement pieces. There is a site that lists a wide range of china patterns and pieces available for replacement. The "Replacements" website offers a great variety, but if ones pattern is not listed one could check out sites such as Amazon or Ebay.
Jasperware
We are WikiAmswers, we answer questions we are not a commercial business. Therefore the answer to your question is: No, we do not supply replacement curved glass for china cabinets.
China Unlimited Replacement Service sells hard to find and collector china. They do most of their sales from the website eBay. They sell brands such as Wedgwood and Royal Doulton.
It is Spode china, pattern is Chinese Rose.
If an individual is wanting to purchase replacement pieces for Noritake Rothschild china, there are many places they may shop. For instance, Amazon is one retailer which offers replacement pieces for this brand of china. Dinnerware Depot is another retailer which offers replacement pieces.
It depends on the brand of your pattern. Ebay or even Amazon may have it. If your brand or style isn't on there, there are some websites dedicated to finding pieces for china, like http://chinareplacements.com/.