... temperature resistant. 3)Using widely, easy to carry and use cycle is long. Description:1)Standards: ASTM, DIN, BS.2)Materials:Gr1 ... ,Gr11,Gr12,Gr23.3)Advantages: Convenient to carry, easy to store, 4)Size: Set the size according to the customers' requirements.Composition table ... ,Gr4,Gr5,Gr7,Gr9,Gr11,Gr12,Gr23.GB/T 3621 ASTM B3488~120ASTM F136 ASTM F67 Serive: supply the test report