BWG4-20 Diameter Common Round Iron Wire Nail with Checkered Head Materials: Q195,Q235 Head: Flat head common nails Shank: smooth shank Point: diamond point Shank Diameter: 4BWG~20BWG. Length: 3/8"to 7" or according to your request. Treatment: bright ...
D indicates the inside diameter of the pipe.The effects of backfill type were also investigated by considering crushed stone (Cr. S), sand,Tahnedecflfaeyctasroouf nbdactkhfeilpl itpyep.eHwaerdreenailnsog iSnovile(sHtigSa) tmedodbeyl mcoantseirdiaelripnagracmruestheresdfostrobnaeck(Cfilrl. ...