I have a requirement of 500,000 pcs Delrin zipper - fine teeth ONLY, Open end ,length 24" ~ 26", colour silver grey with reversible nonlock slider. The slider puller will need to be developed as per our design. Please advise the delivery lead time, slider weight of normal nonlock reversible slider and all other relevant details. My target price is US $ 0.06/pc with slider FOB china.