SRS: 適用於自由跨度距離長度2beiyishangdechangjulishebei，huapiandeshiyong，shideshoumingyanchang
，peijianmosunzhixugenghuanhuakuai，anzhuangyoubiaozhundedaoxiangcao，shiyunxinggengjiatongchang，shiyongshouminggengchang，zhuangyouhuapianhouzaoyinxiao，henxiaodedonglibiankeyidong
，yanchangleshiyongshoumingbufendifangkejiaotishiyong，zhuanshiyongyufuhejiaozhongdedianlanjijiaoguan
，shezhibiaozhundedaoxiangcao，shihuodonggengjiatongchanglinghuo，yanchangshiyongshouming，keziyoushezhineikuan
，jinxingkongjiantiaozheng。shiyongfanwei：自動化設備，汽車生產線，自動控製生產線
，起重機等