Qingdao Richin Hardware Co., Ltd. is located in Qingdao City and is specialized in manufacturing and exporting BMC &SMC, GRP manhole cover. we have exported our products to many countries and regions all over the world, especially West Europe, the USA and South America. We enjoy a good reputation among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual...