에 의해서 ep | 2월 2, 2023 | Uncategorized
Item Description Solution DescriptionPrincipal Materials:1)housing:aluminium alloy ADC12(size 571-090) die solid iron HT200(dimensions one hundred ten-a hundred and fifty)two)Worm:20Cr, ZI Involute profile carbonize&quencher warmth remedy make gear surface area...