HP Graphite Electrode φ400

Standard: YB/T 4088

高功率主流规格

Equivalent grades: HP 400 (行业通用) Tokai TDF (东海碳素) SGL R470 (西格里) GrafTech PHB (美国 GrafTech)

Equivalent grades are for reference only, not official certifications. Subject to supplier technical agreements.

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