日韩不卡在线观看,亚洲中文字幕永久在线天堂,惠民福利久久精品国产亚洲夜色Aⅴ网站,美女视频一区二区黄是免费,动漫国产在线精品一区二区三区,免费亚洲精品影视,人妻无码中文字幕免费视频蜜桃,一区二区三区国产好的精华液,日韩精品一区二区三区中文,精品久久欧美熟妇www

Project Name: Shanghai Shield Milling Machine Model

Commissioner: Shanghai Tunnel Engineering Co., Ltd.

Industrial models are very common in life. As the name implies, they are often used in industrial fields. Industrial models, commonly known as hand-edition, hand-edition model and rapid prototyping, mainly use models to show larger machinery.

Industrial models are usually displayed by some industrial equipments, especially some large mechanical equipments. They are usually displayed by models. Industrial model is one of the models. In fact, there are many classifications of models. Different models have different characteristics, different manufacturing techniques and different materials, and there will be great differences.