Here’s how you recognize Official Sites use .gov A .gov Web page belongs to an official authorities Group in The usa. Secure .gov Internet websites use HTTPS A lock (LockA locked padlock The primary routes of possible human exposure to toluene diisocyanates are inhalation and dermal Speak to. Exposure https://costabull.com/product/toluene-diisocyanate-tdi-80-20/