Square Head Plug 1)Size:1/4"--4" DN8--DN100 2)Material: Carbon Steel, Alloy Steel, Stainless Steel 3)Standard: ASME/DIN/JIS.. Feature: Size: 1/4"--4" DN8--DN100 Material: Carbon Steel, Alloy Steel, Stainless Steel Standard: ASTM/ASME/ANSI/JIS/ DIN etc Pressure Rate: 2000lbs, 3000lbs, 6000lbs, 9000lbs Application: Construction, Pharmacy, Beverage, Beer, Dairy etc. Packing; Wooden Case Delivery ...