Heilongjiang Tubular Goods Manufacturing Co., Ltd.
[ Manufacturer ]Main business are Spiral seam submerged-arc welding steel tube, Corrugated expansion joint, High-frequency welding tube, Thermal insulation tube, Welding wire, Flux, etc.
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[ Manufacturer ]Main business are Spiral seam submerged-arc welding steel tube, Corrugated expansion joint, High-frequency welding tube, Thermal insulation tube, Welding wire, Flux, etc.