This part of JB/T 7884 specifies the type, technical requirements, inspection methods, inspection rules, marking, packaging and storage of sawtooth gin ribs. This section applies to sawtooth gin ribs (hereinafter referred to as ribs).
JB/T 7884.3-2013 Referenced Document
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 9439 Gray cast iron parts*, 2023-09-07 Update