Changhua bloodstone types

The matrix in Changhua Bloodstone is called “ground”, and the color is mostly white, yellow, gray, etc.; the red color formed by cinnabar is called “blood”, and there are various “blood” colors of different colors. Many varieties are divided into different colors and textures of “land”, among which the most famous and most precious varieties are:

Dahongpao : The amount of "blood" is greater than 50%~70%. Extremely rare, it is best to freeze red blood, very rare.

Red hat : the upper part is full red, the lower part is frozen stone, and the blood content is about one-third.

Hongyun articles : "Blood" is often discontinuous in the "ground", but in a cloud-like pattern, very precious.

Liu Guanzhang : Red, white and black, the quality is also the next precious variety.

Peach Blossom Chicken Blood: Full of "blood" spots on the frozen ground, such as the falling English powder, bright and dazzling, the best in Changhua Stone.

White jade chicken blood: white (ground), erythema on the cloth, bright and dazzling.

Glass chicken blood : "ground" is transparent, and the inside and outside contains "blood", which is extremely valuable.

High-quality bloodstone is generally used to make stamps, and quality is used for carving crafts. In the Forbidden City Museum in Beijing, there are more than a dozen pieces of Qing Dynasty emperor's blood vessels in the Qing Dynasty. It is a treasure. Modern quality Changhua bloodstone is extremely difficult to obtain, and the price of each printed stone can be as high as tens of thousands to hundreds of thousands of yuan or more.

Roller Shutter Door

Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.


Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.


Opening methods: Handing driving mode

Rope driving mode

Remote control driving mode

Electric switch driving mode

Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.spiralfastdoor.com

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