1,especially suitable for decoration, repairing and DIY welding. 2,High working ... homework, can complete 40 grain/minutes, especially suitable for the use of hits the version.3. NTK ... , can complete 40 grain/minutes, especially suitable for the use of hits the version.3. NTK ... electronic products: the recording, the tape box and core wheel, disk shell, mobile phone panels and rectifier transformer, switch ...