有谁有空不，帮我修改完善下我的发信

这里谁有空不？能否帮我修改完善下我的发信啊？ dear sir/madam, this is alvin from shenzhen wekomp technology co.,ltd. nice to meet you here ,let me introduce to you my company shortly . wekomp co.ltd is one of leading manufactures of video surveillance , a professional supplier for mdvr 、camera 、 cms??software and solution in the world . the customers are from over 30 countries and areas??,including singapo 、austria、 america、 russia 、europe etc . you can know more about us via our website : hope can build further business relationship with you . thanks & best regards alvin