(1) Appearance quality of the product Consumers can first check the product name and grade indicated in the product packaging box or the documents in the box; secondly, the actual quality of the product can be observed by naked eyes. When purchasing, try to select the surface without obvious defects and regularity. The product. For disc and bowl products, several products of the same size and size can be stacked together to observe the distance between them, and the distance is not uniform, indicating that the shape of the device is irregular and the deformation is large. For a single product, it can be laid flat or reversed on the glass to see if it fits into the glass to determine its deformation. For porcelain products, hold them on your hands and tap the edges with your fingers. If there is a hoarse sound, there is a crack inside.
(II) Preliminary determination of lead dissolution amount and cadmium dissolution amount The amount of lead dissolved in the glaze color and the underglaze color product, and the amount of cadmium dissolved are extremely little or almost no, and can be purchased with confidence. The glaze color products should be purchased according to the purpose of use. To reduce the influence of lead dissolution and cadmium dissolution, the following methods can be adopted:
1. For utensils used to hold acidic foods, products with less surface decoration patterns should be used.
2. When purchasing, pay attention to whether the pattern color is bright. If it is not bright, it may be that the temperature does not meet the requirements when baking flowers. The lead dissolution amount and/or cadmium dissolution amount of such products tends to be high.
3, pay special attention to those products that can be wiped off by hand, this product often has a high amount of lead dissolution or / and cadmium dissolution.
4. For products that are not at ease, you can soak them in vinegar for a few hours. If you notice obvious changes in color, you should discard them.
(3) Precautions for use
1. For products that may be used in microwave ovens, ovens, and dishwashers, the products marked “Machine-to-Microwave, Applicable to Oven, Dishwasher Applicable†should be purchased.
2. For products with large usage, such as the catering industry, it is advisable to use products with thick edges and rounded reinforcing edges. Such products are not easily damaged during use.
3. It is recommended not to use products with cracks. These products have low strength and may be broken when they are filled with food, causing damage to the human body. Due to the existence of cracks, they may be dirty and not easy to clean during use. May cause bacterial growth and affect human health.
4. For products marked for decoration, it cannot be used to hold food. The lead and cadmium dissolution of such products is not controlled by the standard limit.
The main production and sales of ZA, ZAO, ZE petrochemical pumps, CZ chemical process pumps, IH chemical centrifugal pumps, FY submersible pumps, YL series long-axis submersible pumps, LJYA series slurry pumps, WFB non-sealed self-control self-priming pumps, ZH Type horizontal self-priming pump, TB series synchronous self-priming pump, D, DF series vertical, horizontal multi-stage Centrifugal Pump, AY oil pump, IHG (ISG), SG type pipeline centrifugal pump, G type screw pump, LSB series high temperature sulfuric acid Pumps, FSB type fluorine plastic reinforced alloy pumps, CQ (F) series magnetic pumps, IHF lined fluorine pumps, FJX forced circulation pumps, SPP chemical mixed flow pumps, TL type desulfurization pumps, ZM, ZML type slurry pumps, etc. 28 kinds of materials, 30 series of more than 1,000 specifications of special alloy chemical pumps, valves, stainless steel pipe fittings, fluorine pipe fittings. And successfully passed the ISO9001: 2008 quality system certification.
First-class design technology requires advanced processing technology to ensure the manufacture of high-quality equipment. The company has introduced a number of imported precision machine tools, including large floor boring and milling machines, gantry type, vertical and horizontal machining centers, CNC lathes, CNC laser cutting machines, precision large plane, cylindrical, guide rail grinders, etc. At the same time, it has key testing equipment such as vibration aging, high-frequency heat treatment, API laser interferometer, etc., to ensure product processing accuracy and assembly quality.
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Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaou.com