Inquiry (采购产品): black substance in aluminum trim i have a black substance that is dis-coloring my aluminum trim on my home,it is not on the vinyl ,but is adhereing to the siding,i live near a power plant/coal burning,can you do a breakdown of chemicals ,soot ,ash,etc,to see what this is ,and the cost involved and how to take a sample to send. thank you .have you sen this before? **** Hidden Message ***** garry sparks KY 4006 USA Company: jcps Phone: 502-292-9499 E-mail: g1nbedford@bellsouth.net **** Hidden Message ***** g1nbedford@bellsouth.net
