萬里文具集團6.3#銅機芯、7.3#銅機芯適用于各類金屬筆，金屬圓珠筆、戰術筆、木制筆等書寫工具。
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：萬里文具6.3#銅機芯（金屬筆轉動件）
規格：6.30*35.5mm
材質：金屬銅件、金屬鐵
Name: Wanli stationery 6.3# copper core (metal pen rotating parts).
Specification: 6.30*35.5mm
Material: metal copper, metal iron
下圖為萬里文具6.3#銅機芯配套筆芯（115GS金屬筆芯）
The following is a Wan Li stationery 6.3# copper core matching refill (115GS metal Refill).
品名：萬里文具7.3#外牙銅機芯（金屬筆轉動件）
規格：7.30*37.5mm
材質：金屬銅件、金屬鐵
Name: Wanli stationery, 7.3# outer tooth copper movement (metal pen rotating parts).
Specification: 7.30*37.5mm
Material: metal copper, mtal iron
下圖為萬里文具7.3#銅機芯配套筆芯（424金屬筆芯）
The following is a Wan Li stationery 7.3# copper core matching refill (424 metal Refill).
來源：進賢縣萬里文具禮品有限公司、萬里文具網
Source: Jinxian Wanli Stationery Gift Co., Ltd.、 Wanli stationery net.