Treasury bills are called Phnom Penh bonds because they are safe and free of interest tax, which can be realized or transferred at any time. However, there are almost all the real vouchers in the market, so that those who do not have the ability to identify true and false treasury bills are deceived, and the interests are touched. They will feel smooth and delicate, using gravure printing, ticket face, and bump. The fake treasury bills use offset paper. Feel thick. The paper is soft. Smoothness and hardness are poor. By comparing the vouchers with the fake treasury bills, you can distinguish between true and false. The fake paper is relatively rough and slightly yellow. The pattern is not enough, clear, and the size of the ticket is also translated. The loss of T in the glycosidation. The following 1 identifies the true and false national bonds from the following several methods. If exposed to strong light, it is found that some parts of the voucher have a high transmittance. If the whitening or watermark is different, it is very likely to be fake. It should be used for observation and inspection. If the size of the age is such that the mark has traces, it will be scratched; if both sides are found Fuzzy +, is a rub-off mechanism counterfeit. Next, the real coupon does not change color. The fake coupons are fluorescent in blue light. Soaking in the water, the real coupon will not change, and the fake coupon will be separated into several sheets of paper. Coffin, the identification of Weiweicai gas stove quality is directly related to personal and property safety, for consumers, it is necessary to understand the basic knowledge of the quality of household gas stoves. 41. From, Zhi Zhi listened to the product packaging packaging as an integral part of the product quality indicators, its quality reflects the quality of the product quality. The quality of the qualified cooker, its packaging is neatly printed and beautifully marked. The product name should be marked with the product name, the type of gas, the gas pressure, the pressure, the heat flow, the name of the manufacturer, the date of manufacture or the code, etc.; and the packaging of the inferior product is simple and rough, the product is not The contents of the standard or the mark are not uniform and are not accurate, and there is no product quality certificate. 2. Identify the qualified quality cooker from the structure of the cooker. The concrete parts are processed and thin, and the joints of each part are firm and reliable. The pot support should be stable and firm, the stove surface is flat and stable, and the warpage of the cooker should be below 5 mm. Inferior quality cookware, its parts processing rough, and some even have obvious pores and blisters on the gas path system, which not only affects the normal use of the cooker and can easily lead to personal injury accidents. Because the producers of inferior stoves cut corners, rough and shoddy, the original art of assembly, the parts caused by the loose parts of the crab, the parts do not match, the valve or knob is not flexible, the strength of the stove is not enough, and the deformation of the stove surface is serious after bearing. The body is warped and so on. 3. From the burning condition, the burning condition of the cooker directly reflects the texture of the cooker. The electronic ignition device should be flexible 1 槔, it should be ignited more than 8 times, and there must be no 2 consecutive failures; especially the deflagration phenomenon. Observe the flame state at the time of combustion, and there should be no igniting and tempering black smoke phenomenon; the flame should be evenly distributed, blue. The poor quality of the stove, there is a deflagration phenomenon, the flame is unstable, there is a phenomenon of black smoke or yellow flame from the flame, after the adjustment of the damper can not be eliminated. Other manufacturers have excessively pursued the fire, resulting in the structure of the cooker not being treated, the gas combustion is insufficient, and the formation of carbon oxides exceeds the standard. Shoulder Multi-Function,Multi Function Brush Cutter Machine,Multifuntion Shoulder Grass Trimmer,Multi Function Brush Cutter Shaoxing Haotuo Machinery Co., Ltd. , https://www.haotuochinatools.com
Advantages and weaknesses of gas cookers