... 2.Kinds of materials,high density 3. Good photometric brightness stainless steel coil SUS304,304L, 316 ,316L, 321 ,310S 1,Grade:200,300 ... : TP304, TP304H, TP304LN, TP304L, TP310/S, TP316L, TP316H, TP316/316L, TP317L, TP321/321H, TP347, S31803 and so on. 5. Standards: ASTM A312 ...