1. 适用于内衣、床上用品、薄料包袋以及皮革制品的搭接缝、装饰缝，针间距有五种规格可供选择。1suitable for underwear,bedding,thin materialbags andleather productstake the seams,decorative sewing,needlesare available in five sizes.2. 连杆式送料机构，针杆挑线、弯针勾线形成双线链式线迹，线迹牢固且富有弹性。2connecting rod feeding mechanism,needlethread take-up,curved needle hookline forminga double chain stitch,stitchis firmand elastic.3. 独立弯针便于调节，从1/8 " 至 1/2 "通用。3independentcurved needleis easy to adjust,from 1/ 8to 1/ 2"general".4. 改进的勾线机构，由原有的固定式护针器改进为移动式护针器，能有效防止勾线工序中的断针、跳针现象，缝制品线迹更为美观。4improvedthread hooking mechanism,which changes the fixedneedle guardfor the improvement ofmovableneedle guard,can effectively prevent thehook lineprocess ofbroken needle,slipping,the stitchstitchmore beautiful.5. 针头的重要零部件采用特种优质钢材， 能保证长期高速运转不致损坏。5needlepartsmade of special high-quality steel,to ensure long-termhigh-speed operationdoes not damage.6. 采用叶片泵供油。6use vanepump.