Our commission is to serve our buyers and purchasers with most effective good quality and aggressive portable digital goods for Atmospheric Rotational, Basic Testing Instruments For Slurry , Pressurized Rheometer , Basic Testing Instruments For Slurry ,Laboratory Viscometer . We will do our best to meet your requirements and are sincerely looking forward to developing mutual beneficial business relationship with you! The product will supply to all over the world, such as Europe, America, Australia,Guyana , Washington ,Sweden , London .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.