China Moisturizing Suppliers
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Hyaluronic Acid, Sericin Powder, Polyglutamic Acid, squalane,Vitamin B5,Panthenol Xi'an Gawen Biotechnology Co., Ltd , http://www.ahualyn-bio.com
Choose a big shop. Newly bought households and novices of agricultural machinery, in order to prevent fraud, it is best to go to regular agricultural machinery companies or reputable big shops to purchase. However, after the purchase, the salesman must be issued a formal invoice as a proof of future fraud. Look at the packaging. The genuine products generally pay attention to the quality of the outer packaging of the parts, the materials used in the packaging are exquisite, the surface is well-printed, and the technology content is high. If you use a carton pack, not only is the pattern printed on the box clear and colorful, but even the smallest text is clearly printed. There are no unreadable characters and font blurring. In addition, most of the boxes are printed with the product name, model number, quantity, quality inspector code (seal), site and telephone number. Some parts also have security signs.
Outlook. With genuine products, the parts are machined with fine finishes and high finishes, and the naked eye can't see the processing marks and incomplete phenomena of the machine tools. At the same time, the genuine products are generally selected superior materials, and the parts surface heat treatment is good. Look at the seal. The genuine parts are tightly closed, waterproof, moisture-proof, and rust-proof. The corrosion will not occur during storage.
Check clearance. General parts with a slight gap, but not loose; precision partners with a small gap, only 0.002-0.003 mm. Such as the plunger couple, its simple method of inspection is to manually block all holes in the sleeve, in the case of the joint tilt 45, put the plunger 1/3, after loosening, can automatically retract It is a qualified product. If it is a bearing, it needs to have a small gap, and it needs to be flexible and free of sticking. At the same time, the balls should be smooth and free from pockmarks.
Than the quality. The genuine product is of good material, there is no cutting corners, shoddy phenomenon, and the fake product, the quality is generally poor.
Ingeniously identify inferior agricultural machinery parts
At present, the agricultural machinery market is shoddy, and there are quite a few parts that are inferior in copying, which inconveniences the agricultural users and causes certain economic losses. Therefore, it is very important for agricultural households to have some purchasing skills.