... nonconformities. Company information:(pvc pipe ultrasonic welding machine)Zhuhai LK-Automatic Technology Co., Ltd. was founded in 1995 ... pvc pipe ultrasonic welding machine Plastic Guardrail tube sealing machine, LED guardrail tube welding machine, parapet light welding equipment ... tube double-head sealing and welding machine is a semi-automatic controlled machine, Operators will tubes into jig, press ...