Note: 我們生產(chǎn)鋁合金后端蓋5年, 2018年產(chǎn)量達(dá)到37萬(wàn)只,2019年預(yù)計(jì)達(dá)到50萬(wàn)只,主要運(yùn)用于汽車空壓機(jī)。We produce end cover for 5 years, sold 370,000 in 2018 and an estimated 500,000 in 2019, mainly used on automotive air compressors.