Yu Wenlong, a fastener consultant, thinks it's best to look up relevant information yourself. Everything I got online was fake. If you don't know how to pretend, you can answer casually. It is simply false or deceptive, which will directly mislead you and even hurt you. The light products are unqualified, and the heavy ones will be fined. Of course, Yu Wenlong, the fastener consultant, thinks that if you have the strength, it is also a good choice to ask the fastener consultant to refer to your technology, grasp the development direction of the enterprise, locate products and customers. Yu Wenlong, a fastener consultant, has been engaged in the fastener industry for more than ten years, and has been engaged in technology, quality inspection, quality assurance, procurement, commerce and other work in the fastener industry, and has accumulated rich industry experience and a large number of technical data, customer data and supplier data. Fastener consultant Yu Wenlong provides paid consulting services, such as standard consulting, customer-oriented consulting, product positioning consulting, supplier information consulting, business development consulting, and paid consulting and consulting services for all related matters in the screw industry.