7X7无皮光绳系列，主要有7股7根细小钢丝共49根线拧合面成，产品柔软结实，施工较12+1规格更便捷，产品提供直径2.0-2.5-3.0mm可供选取，材质以国标304无磁为主，特别供应2.5和3.0mm的国标316无磁钢丝，欢迎咨询订购！

7x7 leather free smooth rope series, mainly composed of 7 strands, 7 fine wires and 49 wires screwed together, the product is soft and firm, and the construction is more convenient than 12 + 1 specification. The product is available with a diameter of 2.0-2.5-3.0mm, and the material is mainly national standard 304 non-magnetic, especially 2.5 and 3.0mm national standard 316 non magnetic steel wire, welcome to consult and order!