Changzhou Risker International Trade Co., Ltd. is a professional smoking accessories manufacturer in China, and we used to supply domestic trading company mainly and started doing exporting business in 2012, and our head office is located in Shanghai and we have warehouse both in Shanghai and Shenzhen to do fast delivery for customers from all over the world. Our manufacturing center is located in Zhejiang Province and we have joint-venture plant in Shenzhen to supply the newest pen vaporizers. ...