Ống lót bằng thép vonfram có độ chính xác cao (Lớp D2)

Vật liệu: Premium D2 Carbide / Tungsten Steel

độ cứng: Reaching HRA 90 for exceptional wear and deformation resistance

Hoàn thiện bề mặt: Tự nhiên (Non-coated)

Core Crafts: High-precision cylindrical grinding and flawless mirror polishing

Key Feature: Engineered with ultra-hard carbide to deliver micron-level dimensional accuracy and minimum surface friction for extreme service life.