February steel price index trend warning report

First, the market review The beginning of the New Year, the domestic steel prices opened up, only four days after the New Year's Day, the steel prices will be elevated over 100, the market once appeared in the same spot and **, ore and billet rose scene. However, despite the enthusiasm ...

Granite introduction

Granite is a durable and resilient rock that resists acid, alkali, and weathering, making it a popular choice in construction. The term "granite" comes from the Latin word *granum*, meaning grain, and was later adopted into Chinese through Japanese translation. In early Meiji-era geological texts, g ...

"Paper paste" solar cells come out: photoelec…

A groundbreaking development in renewable energy has emerged from Japan, where a research team has created a new kind of solar cell made from wood pulp. Dubbed "paper-paste" solar cells, these devices are lightweight, flexible, and eco-friendly, offering a promising alternative for future energy sol ...

The huge space and opportunity of China's stone ind…

China’s stone industry is currently facing a unique set of opportunities driven by both economic and environmental shifts. As the country continues to recover from the financial crisis, it has maintained a steady pace of growth, offering new potential for the development of the stone secto ...

Exterior wall coating performance requirements

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Exterior wall coating performance requirements

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The application of the Delsway ball valve

Ball valves typically use materials like rubber, nylon, and Teflon for the seat seal, which limits their operating temperature range. The sealing function of a ball valve is achieved when the metal ball is pressed against the plastic seat by the pressure of the medium (in floating ball valves). Und ...