|
序号 |
印度标准号 |
产品 |
延长时间 |
修订后的执行日期 |
|
|
IS 1110:1990 |
ferro silicon硅铁 |
06个月 |
2021-4-23 |
|
|
IS 4409:1973 |
ferro nickel镍铁 |
06个月 |
2021-4-23 |
|
|
IS 3748:1990 |
Tool & Die Steels 工模具钢 |
03个月 |
2021-1-23 |
|
|
IS 7291:1981 |
high speed tool steels 高速工具钢 |
03个月 |
2021-1-23 |
|
|
IS 12146:1987 |
C Mn Steel Forgings for Pressure Vessels 压力容器用C-Mn钢锻件 |
03个月 |
2021-1-23 |
