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Reliable Manufacturer Supply Raw Material CAS 1451-82-7 BK4 2B4M China,We have our own factory in china,our products are cost-effective ,and we provide the best service.Products are exported to USA, Canada, France, Korea, Japan,Russia, Southeast Asia and other countries.New BMK/PMK Powder,New BMK/PMK Powder.CAS :28578-16-7CAS :5449-12-7CAS :49851-31-2CAS :1451-82-7CAS :5337-93-9CAS :1009-14-9CAS :123-75-1CAS :51-05-8CAS :59-46-1CAS :62-44-2CAS :94-09-7CAS :137-58-6CAS :5086-74-8CAS :16595-80-5CAS :14769-73-4CAS :136-47-0CAS :94-24-6CAS :171596-29-5CAS :139755-83-0