As one of the biggest and most professional manufacturer majored in chemical product in China withCE,ISO,certification, we assure that we can cost products with the most reasonable price, good quality and best service..Our main product are :caustic soda ,titanium dioxide ,carbon black ,aluminum sulfate ,calcium chloride ,iron oxide ,lithopone ,zinc oxide ,formic cid , and so on .If you want to know more about us, please feel free to visit our website:    Anyway , look forward to your prompt reply .Best Regards Megan