Hangzhou Tiankai Enterprise Co., Ltd: Collect real and free chemical samples from our shop. We mainly sell pigments, dye and resin. We are a wholesale and retail supplier of chemicals and raw materials. We have all kinds pigments includes organic pigments, inorganic pigments, thermochromic pigments, photochromic pigments, etc. Polymaid resin and damar resin are also hot-selling. Different types dye especially disperse dye are welcomed by customers all over the world.