... rotary hook,industrial sewing machine part's number is DA2-B 2.For:DURKOPP/ADLER 203,204,205;SINGER ... hook,industrial sewing machine part's item number is DA2-B;2.For:DURKOPP/ADLER 203,204,205 ... Advantages:Ningbo Heyu International Trading Co., Ltd is a trading company with a long history. Our ... , the middle of the coastline of China, it is nearby with Shanghai and Hangzhou. Currently, our products ...