... , SA387Gr11CL2, ss304,316L, ID:300-7500 min thk A/F: 6-220 ellip 2:1 dish head (se head-semi-elliptical head ... or equivalent, SA387Gr11CL2, ss304,316L,etcID:300-7500min thk A/F: 6-220forming method: spinning or pressingheat treatment: normalized or hot ...