Magnetic Stud Finder Design Holds Value Despite Expired Patent

Magnetic Stud Finder Design Holds Value Despite Expired Patent

The Qwik Mag II™ magnetic stud finder, known for its strong magnetic force, battery-free operation, and rapid location capabilities, received a US patent (Patent No. US D614980 S). This product utilizes rare earth magnets and features a spherical design, enabling users to precisely locate studs or screws. Although the patent has expired, its design concept and innovative spirit remain valuable for reference. It offers a simple and effective solution for finding hidden metal objects behind walls.

01/04/2026 Logistics
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Guide to Battery Types Voltages and Identification

Guide to Battery Types Voltages and Identification

This article provides a detailed guide on quickly distinguishing battery types based on three key factors: voltage, markings, and shape. It covers both primary batteries (carbon-zinc, alkaline, lithium primary, silver oxide) and rechargeable batteries (nickel-metal hydride, lithium-ion, lithium polymer, lead-acid, nickel-cadmium). Practical tips and common misconceptions are clarified to help you easily become a battery identification expert. This guide aims to simplify the process of choosing the right battery for your needs.

01/23/2026 Logistics Encyclopedia
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US Rail Freight Rebounds As Economy Adapts to Shifts

US Rail Freight Rebounds As Economy Adapts to Shifts

US rail freight volumes increased in late July, driven by higher coal and metal shipments, while automotive and agricultural products declined. This signals a broader recovery in rail freight, although the industry faces challenges related to infrastructure and labor shortages. The increase suggests a strengthening economy, as rail freight is often seen as a leading indicator of economic activity. However, sustained growth will depend on addressing the existing bottlenecks and ensuring sufficient workforce capacity to meet the rising demand.

02/11/2026 Logistics
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Avarearandu Airport Explains QVP and SDRR Codes

Avarearandu Airport Explains QVP and SDRR Codes

This article reveals the IATA code (QVP) and ICAO code (SDRR) of Avaré-Arandu Airport in Brazil. It briefly introduces the differences and application scenarios of these two coding systems. Furthermore, it provides the geographical location of the airport, helping readers quickly understand the identification of this airport. This information allows for easy referencing and identification within the aviation industry and related fields.

11/03/2025 Airport Codes
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Understanding Air Freight Codes The Key Differences Between IATA and ICAO Along With Airline Listings

Understanding Air Freight Codes The Key Differences Between IATA and ICAO Along With Airline Listings

This article analyzes four common codes used in international air transport, highlighting the differences between IATA two-letter codes and ICAO three-letter codes, as well as the coding systems for airports and air waybills. Additionally, a summary of codes for both domestic and international airlines is provided to serve as a clear reference guide for the air transportation industry.

07/28/2025 Logistics Encyclopedia
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Understanding Bearing Classification and Customs Code Compliance

Understanding Bearing Classification and Customs Code Compliance

Bearings are vital mechanical components, making accurate classification of their HS codes essential. According to the Customs Import and Export Tariff of the People's Republic of China, rolling bearings and sliding bearings fall under different categories, subdivided into multiple codes. During the declaration process, it is crucial to avoid coding errors and brand infringement risks to ensure compliance and accuracy.

07/28/2025 HS Code Query
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A Comprehensive Guide to Customs Classification for Bedding Sets

A Comprehensive Guide to Customs Classification for Bedding Sets

This article discusses the HS coding classification method for bedding sets, emphasizing principles such as prioritizing specific name listings, classifying based on fundamental features, and subsequent classifications according to general rules. The specific codes for bed sheets and pillowcases are 6302211000 and 6302219010, while comprehensive bedding sets are classified under 6302219090 or 6302229090. This process provides clear guidance for customs compliance.

07/28/2025 HS Code Query
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US Rail Freight Rebounds in October Hinting at Economic Recovery

US Rail Freight Rebounds in October Hinting at Economic Recovery

According to the Association of American Railroads, US rail freight and intermodal traffic increased year-over-year in late October. Metal ores, nonmetallic minerals, and chemicals showed strong performance. However, grain, coal, and forest product shipments declined. Year-to-date figures still indicate a decrease in intermodal volume. Rail freight faces both opportunities and challenges as the economic landscape evolves. The increase suggests a potential recovery in certain sectors, while declines in others highlight ongoing economic uncertainties and shifting demand patterns.

02/11/2026 Logistics
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US Rail Freight Volumes Decline Amid Logistics Shifts

US Rail Freight Volumes Decline Amid Logistics Shifts

Data from the Association of American Railroads indicates a year-over-year decline in both U.S. rail freight and intermodal volumes in May, although performance varied across market segments. Automobiles & parts, crushed stone, gravel, and food showed strong results, while grain, primary metal products, and petroleum products were weaker. Logistics companies need to closely monitor market dynamics, diversify services, innovate technologically, and focus on sustainability to address challenges and seize future opportunities. Diversification and innovation are key to navigate the changing landscape.

02/11/2026 Logistics
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US Rail Freight Volumes Decline Amid Economic Slowdown Concerns

US Rail Freight Volumes Decline Amid Economic Slowdown Concerns

Data from the Association of American Railroads indicates a year-over-year decrease in U.S. rail freight and intermodal volume for the week ending September 20th. Grain and metal shipments increased, while coal transportation experienced a significant decline. Year-to-date figures show growth, but at a slower pace. Key influencing factors include macroeconomic conditions, industry competition, supply chain bottlenecks, and energy policy transitions. Railroad companies need to improve operational efficiency, expand diversified business lines, strengthen infrastructure development, and embrace sustainable development practices.

02/04/2026 Logistics
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