discount 70% in 2018-09-24 to 2018-09-26
price: USD$ 14.70
freight :USD$7.00,(Postal parcel)
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One tap by drilling and tapping composite joint venture high speed steel HSS (W6Mo5Cr4V2) material, after grinding the whole process, suitable for machining internal thread through holes, processing large helical angle chip is very suitable for large quantities of aluminum material, such as steel and wire tapping processing nitrogen supply.
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