Ningbo Yinzhou Hengxi Hefeng Machinery Products Co., Ltd.  

Product Name: Expansion Shell for Railway Model NO.: HF-ES0004 Surface Treatment: Galvanized Sheet Material: Iron Standard: DIN, ANSI, GB, JIS, BSW Trademark: HeFeng Transport Package: Thick Wooden Cases Specification: Size can be customized Origin: China HS Code: 7316000000 Product Description Installation AccessoriesMechanical Rock Bolts Expansion ShellsDiameterHole Sizelength26mmmodel F1F3¼"32mmmodel F1¼B3¾"35mmmodel F2B23/8"38mmmodel D1L5"45mmmodel D5-13"