1. Company was founded in 1970. sold to many countries and areas around the world. 2. ASME, BV, LR, CCS, U1, U2, DOT cert TYPE: 20 ISO frame, T50 UN portable tankVessel design code: ASME VIII Div1 & IMDG etcCapacity: 22 M3Design pressure: 2.42 MPaThickness: 20 mmInsulation: sunshade R143a DOT tank container