The core characteristic that distinguishes petrochemical equipment imports from conventional mechanical and electrical products lies inTechnical Parameter Sensitivityandtransportation complexity. According to the 2025 latest customs classification manual, high-temperature and high-pressure reaction devices require additional applicationsPressure vessel safety certification, while catalytic cracking equipment needs to simultaneously submitenvironmental performance test reports.
Analysis of common hidden cost components
Technical compliance costs
Modification expenses caused by differences between equipment parameters and domestic standards
Repeated testing fees for special material components
Logistics scheduling costs
Temporary road modification fees for oversized equipment transportation
Constant temperature and humidity transportation costs for precision instruments
Tariff optimization costs
Losses from tariff misjudgment due to unclassified items