This is an inquiry message about 7"" ID Pipe in the 108th China Canton Fair. (这是一条买家关于"7"" ID Pipe"的询盘信息,来自第108届中国广交会。)Inquiry Message (询盘信息) 7"" ID Pipe I am trying to extrude a product out of a pipe (7"" plunger will be pushing through)so I need the id to be very smooth. Steel is fine. Lighter wall thickness - say about 1/16"" wall. Plastic or aluminum may work. Do you have anything? Contact Info (联系信息) Bob Burns 16142 Company: Rooftop Equipment Inc E-mail: bob@rooftopequipment.com bob@rooftopequipment.com