Hollow plastic building formwork is an important tool for the construction of concrete structure engineering, accounting for 20-30% of the cost of concrete engineering, 30-40% of the labor volume, and about 50% of the construction period. The composition of hollow plastic building formwork is generally PVC, also known as PVC production. The formwork technology directly affects the quality, cost and benefit of engineering construction, so it is to promote the construction of China An important part of the construction technology progress. Hollow plastic building formwork can greatly reduce the cost of project I; environmental protection, energy saving, pollution-free, no toxic and harmful gas emission; easy demoulding, no need to brush demoulding agent, tap the formwork to fall off, shorten working hours, save manpower, and speed up the project progress; easy processing, nailing, sawing, drilling, vertical and horizontal connection and combination; easy disassembly, easy installation and disassembly, fast , safety, convenient support operation, conducive to the organization of construction, can effectively improve the construction progress.

The market demand for building formwork in China is increasing year by year. There are nearly 220 million square meters of bamboo / wood production building formwork every year. The new building formwork replaces the traditional wood formwork. Qingdao Yifeng Zhongrun adopts good technicians and materials at home and abroad. It wants to compare the traditional wood formwork with environmental protection and energy conservation, save a lot of manpower and damage to environmental resources.