... of finished products, including : aging with an outside line all ac(alternating current) LED products; sky lanterns,downlight; through a ... 40x20 rectangle steel tube welding, specifications : 440x800x500 ( mm ) ; Up and down-two layers structure, panel use 4cm PCT insulation board , Each ... decent on both sides of each lightshade all the way down ( except for Non - Operating Area ),assembled by 4mm ...