采用送布牙,,壓腳復(fù)合送料;采用連桿挑線,大旋梭勾線;針距標(biāo)盤鎖緊裝置,,確保在倒,,順縫時(shí)線跡長(zhǎng)度不變;適應(yīng)縫制箱包,船帆,,帳篷,,行李袋,皮衣,,沙發(fā)等;JY-H328為牙叉結(jié)構(gòu)