... With UL,VDE,CQC,CB,CE certificates Su Zhou Changhe Electronics Co.,LTD is a specialized terminal blocks manufacturer with the whole process ... R&D,production and marketing ,which belongs to the Changhe Group(Hong Kong) Co.,LTD ,as one of the ... . We have established a series of strong departments such as R&D center,workshops for plastic mould,punching mould,hardware cutting ...