国家机械工业局发布了现行的塑料91香蕉视频APP下载苹果国家标准： JB/T 7910-1999，此标准替代了JB/T 7910-95，塑料91香蕉视频APP下载苹果国家标准以GB 10600-89首次发布，后来调整为 JB/T 7910-95。现行塑料91香蕉视频APP下载苹果国家标准JB/T 7910-1999规定了91香蕉视频APP下载苹果的型式、塑料91香蕉视频APP下载苹果的基本参数、塑料91香蕉视频APP下载苹果的技术要求、塑料91香蕉视频APP下载苹果的试验方法、塑料91香蕉视频APP下载苹果的验收规则、塑料91香蕉视频APP下载苹果的标志、包装、运输与储存和塑料91香蕉视频APP下载苹果的制造保证。
| Type | SJ-YLS45/60-100 | SJ-YLS50/80-120 | SJ-YLS65/100-160 |
| Diameter of screw(mm) | 45 | 50 | 65 |
| L/D ratio of screw(mm) | 28:1 | 28:1 | 28:1 |
| Diameter of thread apit hole(mm) | 0.80-1.20 | 0.80-1.20 | 0.80-1.20 |
| Number of thread spit hole | 60-100 | 80-120 | 100-160 |
| Rotational speed(r/min) | 5-75 | 5-75 | 5-75 |
| Power of main motor(kw) | 7.5 | 11 | 22 |
| Heating power of main motor(kw) | 11 | 13 | 18 |
| Driving power(kw) | 6.2 | 6.2 | 6.2 |
| Power of driving roller(kw) | 10 | 10 | 10 |
| Drawing heating power(kw) | 18 | 18 | 18 |
| Heating manners | Electricity or steam heating | ||
| Installing dimensions(Length, m) | 12-13 | 12-13 | 12-13 |
