... of serving you soon. Material: Forged Carbon Steel, Stainless Steel , Duplex Stainless Steel , Low Alloy Steel(Like A105,LF2,LF6,F6a,F304,F316,F22 ... :2.5MHzProbe Used: 2.5P Φ20Test Blocks:Φ3SENSITIVITY: Φ3+13dB(Φ6.4)Couplant: OIL3.2certifification&MPT report can be provided,after ... 4:1Packing:in polywood Suitable to sea shippment railway stainless steel wheel