Jade is renowned for its wide range of colors, each carrying unique significance in the industry. Among all hues, green holds a special place and is often considered the most prestigious. However, not all greens are the same—there are countless variations, making it essential to have a standardized way of evaluating quality.
To describe jade's green color, the industry uses ten key terms: "Concent," "Yang," "Qiao," "Zheng," "He," "D," "Yin," "Lao," "Evil," and "Flower." These terms help experts and collectors distinguish between high-quality and lower-value pieces.
"Concent" refers to a deep, rich green that lacks any black undertones. The opposite, "Light," describes a pale or weak green that appears washed out. "Yang" means bright and vivid, while "Yin" suggests a dull or murky tone. Even if the green is dark, it can still be appealing if it’s fresh and lively. Conversely, a dark green that feels lifeless may not be as desirable.
"Beauty" indicates a clear, pure green with excellent transparency, whereas "Old" refers to a dull or sluggish color that lacks vibrancy. "Positive" describes a clean, true green without any impurities like yellow, blue, gray, or black. Any such discoloration is labeled "Evil," which significantly reduces the jade’s value.
Lastly, "And" means the green is even and consistent throughout, while "Flower" refers to uneven patterns, such as streaks or scattered patches, which can lower the jade’s overall value. Understanding these terms helps buyers make informed decisions and appreciate the beauty and complexity of jade in a more meaningful way.
Manhole Cover
A manhole cover is a removable plate that is used to cover the opening of a manhole, which is a hole in the ground that provides access to underground utility lines, such as sewer, water, or electrical systems. Manhole covers are typically made of cast iron or other durable materials to withstand heavy loads and prevent unauthorized access to the underground infrastructure. They are usually round in shape to prevent them from falling into the hole and are designed to be easily lifted and replaced by maintenance workers when necessary. Manhole covers are an essential component of urban infrastructure, ensuring the safety and functionality of underground utility systems.
Manhole Cover,Cast Iron Manhole Cover, Ductile Manhole Cover,Iron Manhole Cover, Composite Manhole Cover,Recessed Manhole Cover,FRP Manhole Cover
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