Even-slot knotting machine is multi-functional, withits stitch adapter, it can be used to piuup, to sew figure, patternsetc, Because it is convenient and labour-saved, the deficiency of one such machine is equal to three traditional's&-----

Shanghai Silicate has made progress in the research of …

[ Instrument R & D of Instrument Network ] Ferroelectric ceramics have the characteristics of high energy storage density, fast discharge speed, stable storage performance, etc., and have important applications in modern science and high-tech fields. The lead zirconate titanate (PZT) series of-----