1
Mar.
27, 2025
Applied Optics - Diffraction-Limited Systems
If an optical system converts a diverging spherical wave into a converging spherical wave, the system is referred to as a diffraction-limited system. In this case, the optical system has no aberrations. From the perspective of physical optics, because the diameter of the aperture stop is finite
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2
Mar.
27, 2025
Hot-rolled steel coils are an important type of metal material widely used in various industries
Hot-rolled steel coils are an important type of metal material widely used in various industries. Below is an introduction, including their common sizes, advantages, applications, and development prospects.
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3
Mar.
27, 2025
TIIEC Demonstrates Leadership in Setting Industry Standards
From December 12 to 13, 2024, the 2024 Annual Work Meeting and Standard Review Conference of the National Pump Standardization Technical Committee was held in Kunming, Yunnan.
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4
Mar.
27, 2025
Welded steel pipes, an essential component in various industries, are cylindrical steel conduits produced by welding flat steel sheets. This manufacturing process ensures a versatile and cost-effective solution for transporting fluids and gases.
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5
Mar.
27, 2025
Color coated coil is a steel product that is processed by surface pretreatment
Color coated coil is a steel product that is processed by surface pretreatment, coating and curing with steel coil as the base material. Its coating often uses high-performance coatings such as polyester (PE), fluorocarbon (PVDF), acrylic (ACP), etc. These coatings not only provide a variety of color options, but also have excellent weather resistance and corrosion resistance.
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6
Mar.
27, 2025
Production process of seamless steel pipe
Seamless steel pipe, as a kind of seam-less steel pipe made by perforation, hot rolling, cold drawing or cold rolling, plays an irreplaceable role in many industries with its high strength, corrosion resistance and high pressure resistance.
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7
Mar.
27, 2025
The benefits of electronic health certificates
The benefits of electronic health certificates
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