Compression Fitting Stainless Steel Straight Reducing Connector Φ4mm-Φ16mm Tube Piping: Φ4mm-Φ16mm common grade precision seamless steel pipe. Characteristics of products: No welding, high temperature and high pressure resistance. No welding, high temperature, high pressure. Applicable temperature: ≤450°C ≤450℃. byJuly 3, 2026