90328 10000+3-digit CIQ code. Hydraulic support is a structure used to control the ground pressure in coal mining face, and the load other than ground pressure acts on the hydraulic support. Customs code of coal mine hydraulic support 10-digit HS code 90328 10000+3-digit CIQ code. In other countries, according to different production geological conditions, develop and optimize reasonable support types, including various special hydraulic supports, in order to improve the performance of hydraulic supports and expand the application scope.