abide by the contract, conforms on the market requirement, joins within the market competition by its superior quality likewise as provides far more comprehensive and great company for shoppers to let them develop into huge winner. The pursue on the corporation, is definitely the clients' gratification for China CAS No.: 16721-80-5 and Industrial Grade NAHS, Un1814 Potassium Hydroxide Solution , Sodium sulfide(Na2s) , Sodium Hydrosulphide Flake ,HS CODE 283010 . For more info, be sure to call us as shortly as possible! The product will supply to all over the world, such as Europe, America, Australia,Borussia Dortmund , Cairo ,Iran , Islamabad .We are looking forward to cooperating closely with you to our mutual benefits and top development. We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states.