... 1.high yield 2.good after service Dual-stage Thin-film Cleaning GranulatorLaiwu City Zhongda Plastic Machinery ... line , Drip irrigation pipe production line , Micro spray irrigation equipment , Plastic pipe machine , Packaging film Blowing machine , Plastic ... blowing machinery , Steel pipe anticorrosion production equipment , Single screw extruder , double screw extruder , Plastics canopy ...