Jiangsu Liantong Paper Industry Technology Co., Ltd. is a modern technology-oriented printing and packaging enterprise integrating the production, sales and research and development of corrugated cardboard and cartons. The company currently has one 2.5M seven-layer high-speed corrugated cardboard production line and one 1.8M five-layer high-speed corrugated cardboard production line, capable of manufacturing corrugated cardboard with B flute (flute height 2.7mm), C flute (flute height 3.7mm), large A flute (flute height 4.9mm), and E flute (flute height 1.3mm). Moreover, the corrugation types can be freely combined with special corrugation types such as BB, CC, AA, CA, BCA, AAA, etc., as well as seven-layer heavy-duty packaging materials. The company is committed to developing low-temperature and low-pressure energy-saving production technology for paperboard, has established a low-temperature and low-pressure corrugated paper engineering Technology research center, and possesses a professional technical team dedicated to overcoming technical difficulties and improving the quality of paperboard. At present, the technology has matured. The cardboard can achieve "no cracking in winter and minimal moisture regain in rainy days", saving energy consumption by more than 30% compared with traditional corrugated cardboard production lines.