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.
The production processes of high grade II polyethylene (HDPE) outer skins of Longchangjie Machinery Co., Ltd. mainly include the following methods: gas-phase method, slurry method and solution method. The following introduces several methods in detail:
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