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Personne àcontacter Ms. Karen
NO.256 Middle Wenchang Road, Jiyuan, Henan
Specification: diameter *0 to ***0; length less than ***0; weight : less than *0T Material: 9Cr2MoR; *6CrMoV7; MC3; MC5 etc Barrel hardness: HSD*0 to **2 (higher hardness) barrel hardness evenness: below 3HSD Hardness depth (one side) *2 to *5mm |