Company News

The PE pipes produced by Qingdao Longchangjie Machinery are themselves a type of plastic pipe, which is made of polyethylene (PE) resin. To compare which is more environmentally friendly, PE pipes or other plastic pipes, a comprehensive analysis of their materials, production and usage processes is required.

The PP pipes produced by Longchangjie Machinery Co., Ltd. are widely used in various fields, including the transportation of chemical media, chemical production and storage, as well as specific processes.

The application and development of PE pipes produced by Longchangjie Machinery Co., Ltd. in urban gas are mainly described from three aspects: application advantages, development history, and future trends.

The PP pipes produced and manufactured by Longchangjie have multiple performance advantages, which are mainly described from three aspects: chemical, physical, and installation and usage performance.

The flame retardant performance of rigid polyurethane foam plastic (RPUF) is an important consideration factor in its application in fields such as construction and transportation.

Longchangjie Machinery, a manufacturer of spiral steel pipes, specializes in anti-corrosion treatment. It adopts multi-layer epoxy coating technology, which is resistant to acid and alkali and corrosion. It is suitable for water transmission and transportation. As a professional wholesale supplier of anti-corrosion spiral steel pipes, it uses automated welding technology.