Stainless steel: 304 304L 316 316L 321 2520 310, 317, ug uban pa Carbon steel : A234WPB, A420WPL6, WPHY52, WPHY60, WPJHY65, WPHY70 ug uban pa Diameter: DN15-DN0SCH250. T JB SH HG, ingon sa mosunod: GB/T12459-2017, GB/T13401-2017, ASME B16.9, SH3408, SH3409,HG/T2163...
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