| 摘要 |
1518454 Zinc coated tinplate steel KAWASAKI STEEL CORP 12 Feb 1976 [13 Feb 1975] 05639/76 Heading C7B Cold-rolled low carbon steel is electro-plated first with 1-15g/m<SP>2</SP> of Sn then with 0À0071- 0À71 g/m<SP>2</SP> of Zn (equivalent to a thickness of 0À001-0À1Á). The tin may be reflowed before or after Zn coating (which is conventional) and may finally be chromated by usual chemical or electrochemical methods. The product is sulfur - and smudge-resistant, and is useful in food cans. |
