标准号:IS 7834 Pt.3-1987
发布日期:1988/8/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard ( Part 3) lays down the requirements for manufacture, dimension, tolerances and marking for 90° elbows made of injectio n moulded PVC water supplies.