It can be directly bought on Panlishop.com as follow:
http://www.panlishop.com/product/detail/575467266823.html
http://www.panlishop.com/product/detail/549751799001.html
I always go to play PingPong table tennis with DHS H3 provincial team rubber in Gymnasium as following link:
www.lookingstyle.com/DHS-Double-Happiness-Sports-hurricane3-H3-NEO-Orange-Sponges-table-tennis-Pips-in-Attack-Loop-Rubber.html
China DHS balde are always very hard and difficult to control. butterfly carbon blade is easier to control and softer.
you can try to buy from Pabbos.com
Sometimes I used Yinhe moon Rubbers. I can recommend you can directly buy from China ebay?Shopitchina.com as follow link:
http://www.lookingstyle.com/index.php?route=product/search&search=yinhe
They can supply you wholesale price.