pyridine, 3-(4-nitrophenyl)-

The main use of this product is related to farming and craftsmanship. In the book "Tiangong Kaiwu", you can check it in detail.
Guanfu's "Tiangong Kaiwu", which states that the use of the product involves many fields of people's livelihood. In the case of agricultural mulberry, there are cultivators and weavers. As recorded in the book, the system of farming tools is the foundation of farming. Its ploughshares and other things make it easy to break the soil and cultivate it deeply, so that the soil is loose and fertile, so that seeds can grow and crops can grow. This is related to the source of food and sustains the livelihood of all people. The use of weaving tools, which shuttle through latitude and longitude, becomes the beauty of cloth and silk, which can cover the body to keep out the cold, and at the same time, it can be used for market change and connected to the existence of the four
As for the path of craftsmanship, it is also indispensable. Metalworking tools, such as axes, hammers and saws, are used to chop wood, forge iron, and form tools. Wooden work requires axes to cut trees, chisels to pierce holes, saws to cut materials, and then houses can be built and utensils can be made. For potters, pottery from the kiln can be used as eating utensils, and it can also be used as elegant utensils for display. Eating utensils, containing soup and rice, are clean and practical; furnishings, decorated in rooms, to increase their elegance.
There is also the genus of boats and carriages, which travel on water and drive on land, for transportation. The structure of the boat, according to the nature of water, can carry goods and people, connect rivers, lakes and seas, reach foreign countries, facilitate business and trade, and promote cultural exchanges. The system of the car is suitable for land transportation, convenient for carrying goods, and has great effect on urban and rural exchanges and material transportation.
All these are the main uses of this product. It is related to agriculture, industry, commerce, and all kinds of things. It is crucial and indispensable to the national economy and people's livelihood.

The physical and chemical properties of this product are as follows:
Its texture is warm, the color is soft, and it looks like coagulation. It feels delicate to the touch, smooth to the touch, and seems to have a hint of coolness, but it does not ice the hands. Its density is moderate, and it is placed in the palm of the hand. It is quite heavy, but it does not lose its sense of movement.
In terms of its chemical properties, it is quite stable. At room temperature, it is difficult to react with all kinds of common substances. Even when it encounters water, it is insoluble and imperishable. Water can only be attached to its surface, and after a while it rolls off without leaving a trace. Although it is roasted by fire, it will not deform or fade for a short time. Only when it is attacked by high temperature for a long time, it will change color slightly, but after cooling, it will return to its primary color, as if it has not been quenched by fire.
The surface of this product has a certain degree of hydrophobicity due to its special physical structure. Water droplets on it will naturally converge into beads, roll freely, and are difficult to penetrate. Under the action of specific chemical reagents, the surface can undergo subtle changes, or show strange textures, or change its gloss. However, precise operation and specific conditions are required, which are not arbitrary.
And the chemical composition of this product is closely integrated with each other, forming a unique structure that allows it to exhibit excellent performance when resisting external chemical attack, and can withstand the baptism of time without losing its inherent characteristics.

The production process of this product is quite delicate. At the beginning, the selection of materials is extremely strict. It is necessary to find high-quality materials, such as carefully selecting the original with tough texture and delicate texture, in order to be the foundation of production. This is the first key to the craftsmanship, just like the cornerstone of building a house. If the cornerstone is not strong, the house will not last long.
Then, in the forming stage, the craftsman needs to have extraordinary skills. Handle all kinds of exquisite tools, follow the exact size and exquisite design, or carve or carve. The knife technique is delicate and subtle, the turning points are full of agility, the lines are smooth like heaven, and every knife is poured into the effort, striving to shape the shape and spirit, and there is no rough state.
Furthermore, in the decoration process, it is even more ingenious. Use special methods, or apply colors, or add patterns, to make the color rhyme of the utensils elegant and delicate. The color matching is harmonious and natural, and the pattern case has far-reaching meaning, which cannot be done by those who are not well versed in the traditional way. And the process of modification needs to be reviewed repeatedly. If there is a slight flaw, it will be done again, and no sloppiness can be tolerated.
Finally, the finished product needs to be strictly inspected. From the overall shape to the subtlety, it is all checked in detail, and if there is a slight discrepancy with the standard, it will be discarded and remade. Only with such a rigorous production process can we create a product of high quality, making it both practical and artistic. It will never fade over the years and be immortal.

There is a product today, if you want to know its competitiveness in the market, you should look at it carefully.
Look at its quality, if the product is of good quality, sturdy and durable, and has unique characteristics, as described in Tiangong Kaiwu, with all kinds of ingenious things and excellent texture, it can attract the favor of customers. For example, if the utensils made by good workers are made of high-quality materials, exquisite craftsmanship, and used for a long time without damage, they can stand out in the market. The same is true for today's products. Based on quality, they can compete.
Depending on its price, whether the price is appropriate or not is related to sales. If the price is high but there is no matching quality and use, few people will ask about it; if the price is low and the quality is poor, it will be difficult to be trusted. It is necessary to measure the supply and demand of its cost and the market in order to determine the appropriate price. Just like the market in ancient times, weighing the value of goods, in order to seek a fair and profitable price. The product is priced appropriately, so that it can compete with the market and be enjoyed by more people.
Furthermore, it depends on its use. The use of the product, when needed, can solve people's difficulties. Like the agricultural tools of ancient times, according to the needs of agriculture, made for the convenience of farming, to help farming, so it is indispensable. Today's products should also be insightful into the world, meet people's needs in life, work, entertainment and other aspects, and have practical ability, so that it can be used by people, and then increase its competitiveness.
And check the publicity. Those who are good at publicity can widely spread the name of the product. Although there was no media in ancient times, the guise of signboards and word-of-mouth are passed down from generation to generation, which is also a way to publicize. In today's world, the media is developed, and we should make good use of the Internet, advertising and other channels to advertise the advantages of products, so that people can know and believe them.
Let's look at its after-sales service. After-sales service is comprehensive and can solve customers' worries. If there is a problem with a customer product, you must help it in time, and you will feel good about it. You are willing to buy it again and publicize it.
All of these are related to the competitiveness of the product in the market. All things are taken into account, and careful research and careful work are expected to win in the city, be recognized by everyone, and sell widely.

In the process of using this product, there are many things to pay attention to when using the ancient classical Chinese style of "Tiangong Kaiwu".
First, check the appearance of the utensils carefully before use. If the utensils are made, or there are subtle leaks, it is necessary to observe. If you see cracks or damaged corners, do not use them rashly, so as to avoid causing other changes when using them. For example, if the kettle is cooked, if the kettle body is cracked, it may burst due to uneven heat, endangering people and property.
Second, it is necessary to be familiar with the usage. Each thing has its own rules and cannot be violated. If the weaving of cloth is machine-woven, the warp and weft are intertwined, all according to the fixed formula. If the order is wrong, the cloth will not be striped and fall short. And the method of operation should also follow the ancient teachings, and do not act recklessly.
Third, when using it, you should add protection. All kinds of utensils, when used properly, will last a long time. Take swords as an example, every time you use them, you need to wipe them clean to prevent rust from growing. If you discard them after use, they will rust in case of moisture, and the sharp blade will become dull. When you use them again, it will be difficult to achieve the expected effect.
Fourth, proper placement should not be ignored. When utensils are used up, they should be placed in a dry and safe place. Such as porcelain is fragile, if placed at will, or destroyed by collision. Another example is a bow and crossbow. Improper use may cause them to deform and lose their original strength.
When using this product, all things must be done with caution to ensure smooth and long-term use, and to avoid accidental damage due to negligence.