This standard specifies the basic dimensions and positioning form of the core head for casting patterns. This standard applies to wood patterns, metal patterns and plastic patterns for self-hardening sand molds such as wet molds, dry molds, resin sand and water glass sand for sand casting (machine molding or manual molding).
JB/T 5106-1991 history
1991JB/T 5106-1991 Core print for casting form Basic dimensions (documents submitted for approval)