อื่น ๆ
เอกสารมาตรฐาน
ไม่ระบุ
JSA
JSA JIS K 7039
Plastics Piping Systems - Glass-Reinforced Thermosetting Plastics (GRP) Pipes - Determination of the Long-Term Ultimate Bending Strain and Calculation of the Long-Term Ultimate Relative Ring Deflection, Both Under Wet Conditions
20/10/1998 (R 2003) (R 2008) (R 2013) (R 2018)
0
(20/10/1998 (R 2003) (R 2008) (R 2013) (R 2018))