anchor.diff:  	icon_state = "upindwelder"
   	item_state = "upindwelder"
   	max_fuel = 80
  -	w_class = 3.0
   	m_amt = 70
   	g_amt = 120
   	origin_tech = "engineering=3"
  
positive.code: 	icon_state = "exwelder"
  	item_state = "exwelder"
  	max_fuel = 40
  	w_class = 3.0
  	m_amt = 70
  	g_amt = 120
  	origin_tech = "engineering=4;plasmatech=3"
  
negative.code: 	name = "emergency welding tool"
  	icon_state = "miniwelder"
  	max_fuel = 10
  	w_class = 1
  	m_amt = 30
  	g_amt = 10
  	change_icons = 0
  