Qingdao Tongsan Plastic Machinery, based in China, lists machinery for producing plastic sheets and pipes on Global Trade Plaza. The company, established in 1997, offers equipment such as the PP Hollow Corrugated Sheet Making Machine and the Single Wall Corrugated Pipe Machine. These machines are designed for continuous production of hollow grid plates and corrugated pipes using materials like PP, PE, EVA, PVC, and PA. Buyers can send an enquiry through Global Trade Plaza.