Which is better, Sino-German Pipe Industry or Rifeng?

Materials: Sino-German Pipe Industry Co., Ltd. is a professional manufacturer of pipes. The company's products include plastic pipes, metal bellows expansion joints and metal hoses. Rifeng Pipe Industry is a famous brand in China, and its products include PPR pipes, aluminum-plastic pipes and floor heating pipes.

Technology: In the production process, the products and materials of Sino-German pipeline industry will adopt polyethylene anti-corrosion technology with inner epoxy and outer three-layer structure and primary insulation pipe technology. In the production process, the products and materials of Rifeng Pipe Industry will adopt extrusion molding, hot melt welding and other technologies, and adopt physical and chemical properties in quality inspection.