... tension pins , threaded spring pin,stainless steel spring pin material:steel,aluminum,stainless steelfinish: electrophoretic paint.nickle plated or ... parts and so on. The main products are Probe needle shaft, needle tubing, Connector plug needle, ... , nuts, worm, Various special miniature stainless steel copper pipe pieces, stainless steel capillary pieces etBV certificatedcompany showscnc lathe auto ...