1. Market positioning: Huawei's engineering machines are mainly oriented to enterprises and professional markets. Compared with ordinary consumer mobile phones, enterprise users may be more sensitive to price. In order to meet the needs and budgets of enterprise users, Huawei is more reasonable and close to the people in pricing.

2. Cost control: As a world-renowned technology company, Huawei has a strong supply chain and production capacity, which can realize large-scale production and thus reduce product costs. In addition, Huawei has independent capabilities in R&D, production and material procurement, which can effectively control the manufacturing cost of products.

3. Competitive pressure: The smart phone market is highly competitive, and many brands are trying to expand their market share. In order to maintain the competitive advantage in the market, Huawei will attract more users through pricing strategy. Providing high-quality products at the right price will help to gain more market share. These are the reasons why Huawei engineering machines are cheap. Different models of Huawei construction machines may have different pricing strategies, and factors such as market environment and sales strategy will also affect the price of products. The final pricing is determined by comprehensive consideration of many factors.