Dongguan Changrongjia Mould Technology Co., Ltd., the predecessor of which is Shenzhen Changrong Plastic Bag Pneumatic Punching Machine Plant, is the subsidiary of Changrongjia Group.Changrongjia Group incorporated in 1996, is engaged in producing precision pneumatic punching mould,OPP plastic bag and laminated bag with heat transfer printing technology and solar energy photovoltaic technology by virtue of its innovative and pioneering spirit