You can buy it in Wenzhou vegetable basket group (Wenzhou agricultural and sideline products wholesale market), where my father went to buy it. It is the largest wholesale market in Wenzhou! The price is also cheaper than the vegetable market, and there are many kinds!

The address is in ouhai district, Wenzhou, behind Fancheng Hotel!

Bus route: 75/81/82/83/84/501/7/02/20/57/501.