The corrosion of aldehyde condensation solution has been a great difficult technical problem in polyvinylalcoholfibre production industry, which has been hindering the normal operation of the plant.
维纶醛化液腐蚀是维纶行业的一大技术难题，一直困扰着工厂的正常生产。
2
The styptic fibre composition is composed of polyvinylalcohol, gelatin, sweetgum leaf extract and berberine hydrochloride.