由 ep | 1 月 16, 2023 | 未分类
Product Description Merchandise DescriptionPrincipal Resources:1)housing:aluminium alloy ADC12(dimensions 571-090) die forged iron HT200(size a hundred and ten-a hundred and fifty)two)Worm:20Cr, ZI Involute profile carbonize&quencher warmth therapy make gear...