... the combination of clamping, the use of machine-driven cylinder and head combinations, E27 lamp(other type also available by ... stable, secure, convenient and quiet.VI. Material Selection and Remarks1. Light stand: Made of 40×30mm rectangle steel pipe, Protective board is ... soles.2. Air cylinder: Made of base crimping machine of energy saving lamp special air cylinder, 2 air cylinder, 2 Fixing special ...