الوصف

  Packaging:       Hardest wooden box or you ordered       Full payment must be made within ****0days of placing order.      Shipping and handing:       EMS is our preferred shipping method and are dispatched with 1~2business days of payment  We are closed on weekend and DO NOT ship on Saturdays and Sundays       A Tracking number will sent to you after you order has been shipped.        if you do not receive the Tracking number within 7 business days of confirming payment ,please check your spam folder and then contact us.   Feedback:       Please contact us before leaving any negative or neutral feedback. We will work with you to solve the problem.        The products are superior in quality and moderate in price and are sure to be salable in your market.    Niobium and niobium alloy have high melting point and good corrosion resistance and cold-workability; they extensively applied to chemical, electronic, aerospace industry. And are used as structure materials of aeration jet engine for manufacturing rocket, inner component of reactor and corrosion-resistance component in HNO3, HCL, H2SO4environment. Adding Zr into Nb can markedly improve strength and oxidation resistance of alloymaterials.