The tools and techniques used in the horizontal directional drilling (HDD) process are an. outgrowth of the oil well drilling industry. The components of a horizontal drilling rig used for. pipeline construction are similar to those of an oil well drilling rig with the major exception being. that a horizontal drilling rig is equipped with an inclined ramp as opposed to a vertical mast. HDD.
A kilocalorie, or Kcal in abbreviated form, is a measurement of the amount of energy in the foods you eat. Low-energy foods have a relatively small amount...
The chemical compound potassium chloride (KCl) is a metal halide salt composed of potassium and chloride. It is odorless and has a white or colorless vitreous crystal appearance. The solid dissolves readily in water and its solutions have a salt-like taste.