Welding help? Orientation Problem.

I have created a Welding script which welds an armor in Server storage(cloned) to my upper torso. Now the armor has many parts and a middle upper torso. After setting the upper torso, when I go for other parts to be welded they are not perfectly oriented. So can anyone tell me what is that I am doing wrong? Note : Middle is the real Upper Torso part that needs to be welded and Union1 is an extra detail that I created.

local tool = script.Parent
local player = game.Players.LocalPlayer
local char = player.Character
local debounce = false
tool.Equipped:Connect(function(mouse)
	mouse.KeyDown:Connect(function(key)
		if key == "h" then
			if not debounce then
				debounce = true
				char.UpperTorso.Transparency = 1
				--Upper Torso
				--Middle
				local uppertorsoweld = Instance.new("Weld")
				local uppertorso = game.ServerStorage.IronManSuit.UpperTorso2.Middle:Clone()
				uppertorso.CFrame = char.UpperTorso.CFrame
				uppertorso.Parent = script.Parent
				uppertorsoweld.Part0 = char.UpperTorso
				uppertorsoweld.C0 = char.UpperTorso.CFrame:Inverse()
				uppertorsoweld.Part1 = uppertorso
				uppertorsoweld.C1 = uppertorso.CFrame:Inverse()
				uppertorsoweld.Parent = script.Parent
				-- Union 1
				local uppertorso1weld = Instance.new("Weld")
				local uppertorso1 = game.ServerStorage.IronManSuit.UpperTorso2.Union1:Clone()
				uppertorso1.CFrame = uppertorso.CFrame*CFrame.new(0,0.27,-0.06)
				uppertorso1.Parent = script.Parent
				uppertorso1weld.Part0 = uppertorso
				uppertorso1weld.C0 = uppertorso.CFrame:Inverse()
				uppertorso1weld.Part1 = uppertorso1
				uppertorso1weld.C1 = uppertorso1.CFrame:Inverse()
				uppertorso1weld.Parent = script.Parent
				wait(5)
				debounce = false
			end
		end
	end)
end)