Validity period Since May 15, 2011, Bayer MaterialScience will increase the price of the following products sold in North America: MDI products will increase by US$0.1 per pound; TDI products will increase by US$0.15 per pound; Alcohol products increased by $0.15 per pound.
Manual Concrete Block Maker,Manual Hollow Block Maker,Building Blocks Tracing Machine
Block Molding Machine,Interlocking Block Machine Co., Ltd. , http://www.nbblockmachine.com