This standard specifies the type, marking and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of electric flow control valves for cement bulk equipment (hereinafter referred to as electric flow valves). This standard applies to electric flow control valves for cement bulk equipment.
JC/T 609-2011 Referenced Document
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications