The working principle of the black light lamp is the same as that of the ordinary fluorescent lamp. It is also composed of a ballast, a starter, a lamp tube, and a lamp holder. The difference is that the lamp tube is black, and the emitted light is less than the incandescent light, but a kind of pair. The insects have light with strong attraction. Just put the black light on a height of about 50 centimeters from the water surface, put a rainproof shed on it, turn on the power supply, and switch at night. The flying insects will be within a radius of 5 kilometers around the light, especially the moth will automatically fly to the light. However, when it comes to falling under the lamp, it is eaten by the freshwater fish and it is particularly effective. The required electricity consumption is only 0.2 per 10 o'clock (that is, from dark to bright night), but the flying insects introduced can reach about 10 kilograms, and sometimes even more, greatly reducing the cost of planting freshwater and whitefish breeding feed, and relatively increasing the economy. Benefits are worth promoting and applying.
In short, there are many ways to improve the economic benefits of freshwater fish breeding. The situation varies from place to place and the methods vary. Everyone should start from the actual conditions of the local area and work hard to save costs and improve technology. I believe that the economic benefits of freshwater fish breeding will be higher and higher, and the area for freshwater fish breeding will also grow.

QC Purchasing Service For Ingredients

what is QC Purchasing Service For Ingredients?

Sourcing services are a type of business activity in which one company (usually a supply chain management company or professional purchasing agent) accepts a commission from another company or individual to carry out purchasing activities on their behalf. This service mainly includes the following aspects:
1. Demand analysis: understand the specific needs of customers, including the specifications, quality requirements, quantity and delivery time of the required goods or services.
2. Supplier screening: Finding and screening suitable suppliers according to customer needs, which may involve market research, price comparison, supplier evaluation, etc.
3. Negotiation and contract signing: negotiated prices, delivery terms, payment methods and other aspects with suppliers on behalf of customers, and assisted in signing procurement contracts.
4. Order processing: Place the purchase order to the supplier, track the execution of the order, and ensure that the goods are delivered in accordance with the agreed time, quality and quantity.
5. Quality control: Conduct quality inspection or supervise the supplier's quality control process when necessary to ensure that the purchased goods or services meet the customer's quality requirements.
6. Logistics and distribution: arrange the transportation and distribution of goods, coordinate warehouse management, and ensure that goods can be delivered on time and safely to the customer's designated location.
7. Financial settlement: Handling financial matters related to procurement, including paying suppliers, processing invoices, making foreign exchange (if international trade is involved), etc.
8. Risk management: identify and manage risks in the procurement process, such as supply disruption, price fluctuations, quality disputes, etc., and take measures to reduce the impact of these risks on customers.
Through the agent procurement service, customers can save time and resources, use the procurement experience and network of professional companies to obtain better prices and conditions, while reducing their own procurement risks. This service is particularly useful for companies and individuals who do not have a dedicated procurement department or who want to focus on their core business and outsource non-core activities.

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Xi'an Day Natural Inc. , http://herb.dayqc.com