Basic functions of editing 

Needles are for Seiko by business, diameter errors absolute not over 0.01mm, all pipe are used unique process, no Flash processing, achieved both inside and outside tube wall polishing and the pipe end surface pour angle, ensure liquid spit precision, put an end to drawing, needle seat used double spiral lock tight and the big area rotating design, not only makes tie more security and demolition more easy (can by customer requirements making into elbow needle mouth).