| http://www.w3.org/ns/prov#value | - To combat this challenge, Witthuhn shows clients his knowledge of the industry and reassures them of his success. ???If they are really serious about getting it done we get them the information they need such as references,??? he says. ???You have to let them know that you know the products, how thick the paint is coming out of the machine, what is actually in the sealcoat, how long it is going to
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