某摩托车发动机进气歧管二次抽芯注塑模具设计
刘庆东
Design of injection mold with two⁃step core⁃pulling mechanism for intake manifold of a motorcycle engine
LIU Qingdong
中国塑料 . 2024, (4): 88 -91 .  DOI: 10.19491/j.issn.1001-9278.2024.04.014