Anshan Jinhengxin Commercial and Trading Co.,Ltd: Aggregates are commonly used in construction work, including concrete. The aggregates are sourced from rock quarries, sand quarries and natural mines. We can supply concrete aggregates, such as sand, gravel, stone and crushed rock.Briefing of Branch Company -WORLD MARINE CO.,LTD is the Branch Company of ASJHX COMMERCIAL AND TRADING CO.,LTD ,which is busy with FRP boat, yacht and FRP boat accessories design, development, manufacturing and sales.