The chemical industry occupies an important position in the national economy and is the basic industry and pillar industry in many countries. The chemical industry is the general term for enterprises and units engaged in the production and development of the chemical industry. The chemical industry is a major polluter due to its diverse categories, complex processes, and diverse products, as well as many types, large quantities, and high toxicity of pollutants emitted during production. At the same time, chemical products are likely to produce a large amount of toxic substances in various links such as processing, storage, use and waste disposal, which will affect the ecological environment. Therefore, the pipeline standards adopted by the chemical industry are strict. Due to the complex and numerous pipelines of general chemical plants, outdoor adhesive tape is usually used to enter the label. The workload is large and requires multiple people to collaborate. Long-term wind and sun writing are easy to blur and fall off. The hand-held inkjet printer under the German EBS Inkjet Group is small in size and easy to carry. It can work continuously for 16 hours without interruption after a single charge. It is suitable for long-term outdoor information marking of chemical pipelines. According to the chemical pipeline, the font size, concentration, LOGO, etc. can be adjusted arbitrarily, and one person can complete the information identification of the pipelines of different specifications and sizes inside the factory, which is convenient for regular maintenance and maintenance, and at the same time reduces labor. EBS handheld inkjet printers are different from piezoelectric nozzles or hot bubble nozzles of other portable inkjet printers on the market. It adopts innovative solenoid valve nozzles, which has the advantage of not blocking the nozzles, low failure rate and more efficient use. . Since the chemical pipeline is outdoors for a long time, the EBS handheld inkjet printer has outdoor special ink, which can still maintain the integrity and clarity of the marking information after a long time in the sun and rain. Taking into account the need to print in different environments, EBS portable inkjet printers use artificial ruby u200bu200bnozzles, which have the characteristics of wear resistance, high temperature resistance, and corrosion resistance, ensuring the most efficient marking solution for the chemical industry.