Correctly identify the introduction of hydraulic fittings on the device

Introduction of hydraulic equipment in the common national standard connector structure , characteristics, manufacture and use of such countries into regional differences profiles , lists a briefing for the relevant comrades in actual use and identification of reference. Major international Hydraulic hose fittings  types, characteristics and status of the country or region Qian Annex. These hydraulic fittings , many connectors are widely used ] : Various equipment hard pressed devices, but not all of these connectors , according to the production of the imported equipment used in countries or regions and manufacturer of hydraulic components , narrowing the choice range of standard fittings , and finally according to their structural characteristics , determine the connector labeled heap.