Ditch Witch JT60 Horizontal Directional Drill. The Ditch Witch FX60 Vacuum Excavator. Ditch Witch, a company of Charles Machine Works, is an American brand of underground construction equipment, which has been in operation since 1949. The company is based in Perry, Oklahoma. Innovation of Ditch Witch machines started in the 1940s when a compact trenching machine was created to replace the pick and shovel for installation of some residential services.
Exocrine glands are glands that produce and secrete substances onto an epithelial surface by way of a duct. Examples of exocrine glands include sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, and mucous.Exocrine glands are one of two types of glands in the human body, the other being endocrine glands, which secrete their products directly into the bloodstream.xocrine glands are one of two types of glands in the human body, the other being endocrine glands, which secrete their products directly into the bloodstream.
1 Endocrine - They are ductless glands and their secretions are directly poured into blood so they are found everywhere around the body 2  . Exocrine glands - They are glands with presence of special ducts which carry the secretions.