42109 hit the nail on the head..
It really varies.. The 50ml bottles are sealed.. And Marl is Bauway.. Dekang for whatever reasons can't use the name Marl anymore so they call it USA Mix...
10 ml bottles, sometimes we buy liters to bottle for kits and typically don't sell 10 ml bottles of marl.. When we buy by the liter it's usually Bauway.. But if we run out of liter stuff then we'll use 50ml bottles of whichever type is available and re-bottle them into 10's.. Lately it's been USA Mix being bottled into 10 ml bottles..
We don't poke any of the china liquid, goes straight from thier bottle to ours..
Here's the trickiest part.. When asking Bauway whether they make thier own or by from Dekang the answer is 'yes'
But it gets worse.. As you all know, even Dekang liquid flavor changes between batches so it's probably always going to taste a bit different regardless of who says who made what..
hoog