Conductor Material: The conductors of these two cables are made of aluminum. Aluminum has good electrical conductivity and can meet the basic requirements of power transmission. Compared with copper, aluminum has a lower density, which makes the overall weight of the cable lighter, reducing transportation and laying costs. At the same time, the price of aluminum is relatively low, which helps to control the production cost of the cable and improve the cost performance of the product. However, the mechanical strength of aluminum is relatively low, so it is necessary to avoid excessive bending and stretching during processing and use.

Insulation layer material: The insulation layer is made of cross-linked polyethylene (XLPE) material. XLPE has excellent electrical insulation performance, which can effectively prevent current leakage and ensure the safety of power transmission. It has excellent temperature resistance and can work stably in the temperature range of -40℃ to 90℃, adapting to temperature changes in different environments. In addition, XLPE also has good aging resistance, which can resist the erosion of oxygen, ultraviolet rays and other factors, and prolong the service life of the cable.

Sheath material: The sheath is made of polyvinyl chloride (PVC). PVC has good mechanical strength, can resist external mechanical damages such as collision and extrusion, and protect the internal structure of the cable. At the same time, it has certain moisture-proof and anti-corrosion capabilities, which can prevent moisture, corrosive substances, etc. from damaging the cable, further prolonging the service life of the cable. Moreover, PVC materials are easy to process and have low cost, which helps to control the overall cost of the cable.

Style: Both cables are of 4-core design with an overall circular structure. The 4-core design enables the cable to transmit three-phase electricity and neutral wire at the same time, meeting the electricity needs of most power equipment and systems. The circular structure is easy to process during production, and can better adapt to laying environments such as pipes and cable trays during laying, reducing laying resistance. The appearance of the cable is usually black or gray, with a smooth surface and clear marks, which is convenient for identification and installation.

Conductor processing: First, aluminum ingots are made into aluminum rods through smelting, rolling and other processes, and then the aluminum rods are drawn into Aluminum Wires of the required diameter through a wire drawing machine. During the drawing process, it is necessary to strictly control the drawing speed and tension to ensure the dimensional accuracy and mechanical properties of the Aluminum Wires. The drawn aluminum wires also need to be annealed to eliminate internal stress and improve their Flexibility and conductivity. After that, multiple aluminum wires are stranded together to form the conductor of the 4-core cable.

Insulation extrusion: The Stranded Conductor is sent to the extruder, and a uniform layer of cross-linked polyethylene (XLPE) insulation is extruded on the surface of the conductor. During the extrusion process, it is necessary to accurately control the extrusion temperature, speed and pressure to ensure that the insulation layer has uniform thickness, smooth surface, and is closely combined with the conductor. The extruded insulation layer needs to be cross-linked, usually by high temperature and high pressure, so that the XLPE molecules form a three-dimensional network structure, enhancing its mechanical properties and temperature resistance.

Cabling: The 4 Conductors with insulation layers are stranded together according to a certain pitch to form the cable core. During the cabling process, it is necessary to add filling materials in the middle of the cable core to ensure the roundness and stability of the cable core. The filling material is usually polypropylene rope, etc., which has certain flexibility and corrosion resistance.

Sheath extrusion: A polyvinyl chloride (PVC) sheath layer is extruded outside the cable core. The cable core is sent to the extruder, and a uniform PVC sheath is extruded on its surface. It is also necessary to strictly control the extrusion parameters to ensure that the sheath layer has uniform thickness, flat surface, and is closely combined with the cable core. The extrusion of the sheath layer can further protect the cable and improve the mechanical properties and protection ability of the cable.

Inspection and testing: Strict inspection and testing are required in all links of the production process. The diameter, resistance, tensile strength, etc. of the conductor are tested to ensure that they meet relevant standards. The thickness, insulation resistance, voltage resistance performance, etc. of the insulation layer are tested to ensure its insulation effect. The roundness, stranding pitch, etc. of the cabled core are checked. The thickness, tensile strength, impact resistance, etc. of the sheath layer are tested. Finally, the finished cable is sampled and tested, such as partial discharge test and aging test, to ensure that the product quality meets the requirements.

Packaging materials: Cables are usually packaged with wooden reels or iron reels. Wooden reels are made of high-quality hardwood, such as pine and fir, which have high strength and toughness and can bear the weight of the cable and the impact force during transportation. The surface of the wooden reel is treated with anti-corrosion, such as painting and impregnation, to prevent the wood from getting damp and decaying, and prolong its service life. The iron reel is welded with high-strength steel, which has higher bearing capacity and mechanical strength, and is suitable for packaging long-length and heavy-weight cables. The surface of the iron reel is galvanized to improve its corrosion resistance and prevent rusting.

Packaging method: The cable is neatly wound on a wooden reel or iron reel. During the winding process, it is necessary to control the winding tension to avoid excessive stretching or extrusion of the cable and ensure that the structure of the cable is not damaged. The two ends of the cable are wrapped with plastic film to prevent the ends from getting damp and polluted. On the side of the wooden reel or iron reel, the model, specification, length, weight, production date, manufacturer and other information of the cable are clearly marked to facilitate users' identification and acceptance. For exported products, the corresponding international standards and certification marks will also be marked on the packaging.

Packaging requirements: The packaging must be firm and reliable, able to withstand various external forces during transportation, and prevent the cable from loosening, wearing or being damaged during transportation and storage. The size of the packaging should meet the loading requirements of the means of transport, and be convenient for loading, unloading and transportation. At the same time, the packaging should have certain moisture-proof and dust-proof properties to protect the cable from the influence of the external environment.

Transportation methods: According to the transportation distance, quantity and customer needs, different transportation methods can be selected. Road transportation has high flexibility, suitable for short-distance transportation and door-to-door service, and can quickly deliver the cable to the destination. Railway transportation is suitable for medium and long-distance, large-volume cable transportation, with the advantages of large transportation volume, low cost and good stability. Water transportation is suitable for long-distance transportation and exported products, especially for customers in coastal areas. Water transportation can reduce transportation costs, but the transportation time is relatively long.

Transportation precautions: During transportation, the cable reel should be placed horizontally, and it is strictly forbidden to invert or tilt to prevent the cable from sliding off the reel and causing damage. When loading and unloading the cable, special hoisting equipment such as cranes and forklifts should be used, and the hoisting point should be located at the axis of the cable reel to avoid damaging the cable reel and the cable. During transportation, the cable should be avoided from severe impact, vibration and extrusion to prevent damage to the internal structure of the cable. At the same time, it is necessary to take moisture-proof, sun-proof and anti-corrosion measures, such as covering with rain cloth, avoiding direct sunlight, and keeping away from corrosive substances. During transportation in winter, attention should be paid to preventing the cable from freezing to avoid the impact of low temperature on the cable performance.

Transportation time: The transportation time depends on the transportation method and distance. Road transportation can generally arrive within 1-5 days, and the specific time depends on the transportation distance and road conditions. Railway transportation usually takes 3-10 days, which is affected by railway lines and scheduling. Water transportation takes a longer time, with domestic transportation generally taking 7-15 days, and international transportation may take several weeks or even months depending on the route and port conditions.

Delivery process: After the customer places an order, the company will promptly review the order to confirm the product model, specification, quantity, delivery date and other information. After passing the review, the warehouse department will prepare the goods according to the order requirements, conduct stock preparation and quality re-inspection to ensure that the products meet the order requirements. After the preparation of goods is completed, packaging and transportation will be arranged, appropriate transportation methods and logistics companies will be selected, and transportation contracts will be signed with logistics companies to clarify the responsibilities of both parties. After shipment, the company will promptly notify the customer of the shipment information, including the name of the logistics company, waybill number, estimated arrival time, etc., to facilitate the customer to track the transportation status of the goods.

Delivery time: For products in stock, they will generally be shipped within 1-3 working days after the order is confirmed. For products that need to be produced, the delivery time depends on the production cycle, usually 7-15 working days. In special cases, such as raw material shortage, production equipment failure, etc., delivery may be delayed. The company will communicate with the customer in advance, explain the reasons and negotiate a solution to ensure that the customer's interests are not affected.

Delivery location: The company has warehouses and production bases in many regions across the country, and will select the nearest delivery location according to the customer's geographical location to shorten the transportation time and reduce transportation costs. For exported products, they will be shipped from the nearest port to facilitate customs declaration and transportation of the goods.

Sample provision: To enable customers to better understand the quality and performance of the product, the company can provide samples. Customers can make sample requests to the company by phone, email, online platform, etc., indicating the model, specification and other information of the required samples. After receiving the sample request, the company will arrange the production and delivery of samples within 1-3 working days.

Sample cost: The cost of samples is usually borne by the customer, including the production cost and mailing cost of the samples. For long-term cooperative customers or customers with large orders, the company can provide samples for free, and the sample cost will be deducted from subsequent orders. The specific sample cost can be negotiated with the company's sales staff.

Sample description: The provided samples have the same material, process and performance as the mass-produced products, and can truly reflect the quality of the products. The sample will be marked with the product's model, specification, production batch and other information to facilitate customers' testing and inspection. After receiving the sample, customers can test the appearance, size, electrical performance, etc. of the sample, and can communicate with the company in time if any problems are found.

Quality assurance: The company promises that the quality guarantee period of this cable is 18 months from the date of shipment. During the quality guarantee period, if the product has quality problems caused by non-human factors, the company will be responsible for free repair or replacement. If the product is damaged due to human factors such as improper use and incorrect installation by the customer, the company will provide paid maintenance services and charge corresponding material and labor costs.

Technical support: The company has a professional technical team to provide customers with comprehensive technical support. Customers can consult the technical team about problems encountered in product selection, installation, use, maintenance, etc. Technical personnel will reply within 24 hours and provide professional solutions and technical guidance. The company will also regularly organize technical training to help customers better understand and use the products.

After-sales service response: If customers find product quality problems or need after-sales service during use, they can contact the company through customer service phone, email, online customer service, etc. The company will respond within 2 hours after receiving the after-sales service request, understand the problem and register it. For problems that need on-site handling, the company will arrange technical personnel to arrive at the site within 24-72 hours according to the distance from the customer's location for maintenance and handling.

Return and exchange policy: During the quality guarantee period, if the product is indeed of quality problems, customers can submit a return or exchange application. Customers need to provide relevant evidence such as product photos and test reports, and the company will review within 3 working days after receiving the application. After approval, the company will arrange return or exchange and bear the relevant transportation costs. For returns and exchanges due to non-quality problems, such as wrong product selection by customers, customers need to bear the round-trip transportation costs of the products and a certain handling fee. The specific fee standard can be negotiated with the company.

Customer feedback: The company attaches great importance to customers' feedback and has set up special customer feedback channels, such as suggestion boxes, customer service phones, online messages, etc. Customers can put forward opinions and suggestions on product quality, service attitude, delivery date, etc. The company will regularly sort out and analyze customer feedback, and promptly improve the existing problems to continuously improve product quality and service level to meet customer needs.