All the dongsheng old brick comes from 1900-1945, made by the pure hand in the northeast, oak wood fire baked by clay brick, making the product of pure loess, do not add preservatives or chemicals and ashes, etc.. The old brick is from Japanese buildings recently, Each brick is manually demolished and removed,then machine cuts.

The old brick is in clay, shale, coal gangue as raw material, by grinding and mixing, kneading and using manual or mechanical molding, after drying under 900 centigrade degrees of temperature in oxidizing flame burning and the burning building bricks.

Because of the old brick production in the long history, each brick is after natural weathering, naturally fade, tile mark is 100 years of accumulation, brick surface appearance is different from other antique brick, brick modern, so there is no exactly the same size and color, is the true meaning of ancient brick. That is shows the simple, elegant, calm is innate, and other antique brick can not imitate and match. 

So Dalian old brick surface is not completely consistent, brick surface weathering, round edge and concave, lack of meat phenomenon, belongs to the essence of Dalian old brick generic.

By this period the old brick in terms of purity, viscosity and quality are the most suitable for decoration.