dongguanlianchuangelectronicproductsco.,ltd.isaprofessionalmanufactureroftubesforelectroniccomponents,theproductsareextensivelyusedforfilters,relays,connectors,networktransformer,lednixietube,icandsmt.thematerialsusedincludepvc,psandpe,inwhichpvcmaterialisuptoroshregualations,psmaterialisinaccordanc