discount 70% in 2018-09-18 to 2018-09-20
price: USD$ 57.40
freight :USD$7.00,(Postal parcel)
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Factory direct sales tool screw sleeve screw sleeve screw steel braces M16X2 M18X2.5/ set
 steel screw thread sheath is spiral coil of cold rolled high strength diamond wire - smooth surface precision forming, high precision, concentric thread body, mainly used in nickel alloy, forming high strength wear resistance of interchangeable standard internal thread mechanical parts magnesium light alloy materials on engineering.