Inquiry (采购产品): Copper to Copper To whom it my concern, We are developing low cost solar water heaters, for that we need an affordable adhesive to bond copper sheets to copper pipes. The adhesive should be thermal conductive and be able to withstand heat up to 390 F. If you have a product that fits our description please sent us an email at luc@solartrex.com **** Hidden Message ***** Ludger Hambrock 32034 USA Company: Solartrex Inc. E-mail: luc@solartrex.com **** Hidden Message ***** luc@solartrex.com