In the process of industrialization, acid rain is becoming more and more serious, which has become the main cause of industrial environmental pollution. Champion diamonds and champion stones are fired at high temperature with special formula, acid and alkali resistance, no stain and easy to clean.

Ceramic tile grey, which started in 2016 and became a fashionable trend, has become an important feature of defining the line of modern style. Consumption pressure, business catering and manufacturer pushing are regarded as the most magnificent trend in China's ceramics industry. In the current wave of consumer upgrading, consumers can only be touched with enough precision of consumption, and international brand products often win with this high-end quality advantage. In the ceramic industry, a few brands with international background and perennial participation in the international market competition are the basic ones to be familiar with this way, and they are also leading the frontier direction of scientific and technological innovation. Bologna exhibition never outdated "high-grade grey" products: what ash can be defined as the high-grade grey in ceramic tile? How to get the best product identification among "all brands of products are a piece of grey"?