DEAR SIR we are A MOROCCAN company we manufacter an adhesive on base of polybutene, our annual consumption is 90 tons, we look for specifications as follow : pb which viscosite between 700 and 4700 - at 100 °, we ask for a good price and specification sheets to allow us to place our 1st order which will always be by container of 20 ", thank you for your answer best regard