The registered address of the city of tin-free telechemicals ltd. Is in non-tin, with the following chemical raw materials and products mainly being sold: japan imports odour-free molecular weight regulation agents, chain transfer agents, americase, u. S. Esman pure monomeric resins, atl-95 resins, hydrocarbon resins, adhesive resins, modified resins, ams resins, petroleum resins, hydrocarbon resins, methyl styrene resins, α-methyl styrene dimethrins, dipolytic acids, ultraviolet absorbents, branches sebs, etc。