万里文具集团6.3#铜机芯、7.3#铜机芯适用于各类金属笔，金属圆珠笔、战术笔、木制笔等书写工具。
Wanli stationery group 6.3# copper core and 7.3# copper core are suitable for all kinds of metal pens, metal ball pen, Tactical Pen, wooden pen and other writing tools.

品名：万里文具6.3#铜机芯（金属笔转动件）

规格：6.30*35.5mm
材质：金属铜件、金属铁

Name: Wanli stationery 6.3# copper core (metal pen rotating parts).

Specification: 6.30*35.5mm

Material: metal copper, metal iron

下图为万里文具6.3#铜机芯配套笔芯（115GS金属笔芯）
The following is a Wan Li stationery 6.3# copper core matching refill (115GS metal Refill).

品名：万里文具7.3#外牙铜机芯（金属笔转动件）

规格：7.30*37.5mm
材质：金属铜件、金属铁

Name: Wanli stationery, 7.3# outer tooth copper movement (metal pen rotating parts).

Specification: 7.30*37.5mm

Material: metal copper, mtal iron

下图为万里文具7.3#铜机芯配套笔芯（424金属笔芯）
The following is a Wan Li stationery 7.3# copper core matching refill (424 metal Refill).

来源：进贤县万里文具礼品有限公司、万里文具网
Source: Jinxian Wanli Stationery Gift Co., Ltd.、 Wanli stationery net.