标准号:IS 7614-1975
发布日期:1975/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard prescribes requirements of wooden bobbins for ring doubling and twisting frames of the following types:a) Double flanged bobbins,b) Taper-build (tapered-head ) bobbins, andc) Taper-build ( radiused-head) bobbins.