尼龙包胶线材采用优质材料、先进工艺研制的新产品，具有表面涂层光滑、附着力强、耐磨、耐潮湿、耐锈蚀、耐老化, 不易破裂的特点。涂层材料环保, 无毒，对人体无害，是高档本册、挂历、台历为单双簧及彩色曲别针的理想材料。尼龙包胶线技术参数：装订线圈直径(mm)直径公差(mm)抗拉强度(N/mm2)重量(KG/1000米)0.700.800.850.900.95-0.02/+0.02-0.02/+0.02-0.02/+0.02-0.02/+0.02-0.02/+0.02750±25750±25750±25750±25750±252.543.403.874.374.801.001.051.101.151.20-0.02/+0.02-0.02/+0.02-0.02/+0.02-0.02/+0.02-0.02/+0.02750±25750±25750±25700±25700±255.475.956.707.368.051.251.301.401.50-0.02/+0.02-0.02/+0.02-0.02/+0.02-0.02/+0.02675±25675±25600±25575±258.779.5211.1112.83尼龙包覆厚度：0.035mm包装重量：500kg±5%