pipe plug 1.The 1/4''-4'' dimensions acc. to ASME B 16.11. 2.Logo:changhao,china 3.Model: ... -pressure pipe manufacturers, the products have forged flanges, elbows, three different-diameter pipe(size head),insulation joints, insulating flange and forging ... ,HGJ,SH,ASME,ANSI,APL.MSS-SP,DIN,JIS standards for the production of different tubes and flanges. Our products enjoy a fast ...