... with PCB-1 . Usage: 1, opened the machine, take the shockproof bubble, unclose double-sided adhesive ... water pump, fix the worktable. 2, machine inspection: put the machine on a smooth table, inject water for ... at any time. After filtration put into the machine, which is better that the level no more ... than worktable. Dont melt ferric chloride in the machine, the draff damage water pump easily.The ratio ...