I.Sales of the steel products 1. Steel pipes (1) Seamless steel pipe: material 20#, 45#, 16Mn; Specification dia:57mm-dia:630mm. (2) High-frequency welded pipe: material Q235A/B; Specification dia:15mm-dia:159mm. (3) Galvanized pipe: material Q235A/B; Specification dia:15mm-dia:80mm. (4) Stainless steel pipe: material 304, 316, 321, 430; Specification dia:15mm-dia:159mm. (5) Cast iron pipe: material is spherulitic graphite cast iron, 18#, 22# pig iron. 2. Steel plate (1) Cold rolled sheet in coil, cold rolled sheet in box: Specification 0.4mm-3.0mm; Material: ST12, SS400, SPHC. (2) Hot rolled sheet in coil: Specification 2.0mm-15.5mm; Material: Q235, SS400, SPHC, 16Mn, 16MnR, 20G, 65Mn. (3) Medium plate: Specification 8.0mm-100mm; Material Q235, 65Mn, 16MnL. (4) Galvanized sheet: Specification 0.4mm-3.0mm (5) Stainless steel sheet: Specification 0.3mm-2.0mm; Material 304, 316, 321, 430.