Pressure vessels, as strictly regulated special equipment, are widely used in many critical fields such as petroleum refining, chemical reactions, energy storage, pharmaceutical production, and food processing. Their quality stability and safety performance directly determine the safety of the production process, and cannot be taken lightly. Many purchasers fall into misconceptions when selecting pressure vessels, either blindly pursuing low prices while ignoring safety qualifications, or being unclear about the applicable scenarios for different pressure levels, leading to unusable equipment later. Shandong Shijie Heavy Industry Co., Ltd., as a legitimate manufacturer with a complete special equipment production license, has established a full-process quality control system from raw material procurement to finished product delivery. We use high-strength steel that meets national standards, combined with advanced welding and flaw detection processes, ensuring that every pressure vessel passes rigorous testing. Furthermore, we can equip it with Tank Lining, an anti-corrosion and fireproofing coating, to extend the equipment's service life and adapt it to various complex working conditions.