I-Shandong Xinda Luxin Waterproof Materials Co., Ltd., eseSifundeni sase-Weicheng, isisungule idumela layo ngomhubhe wokuqala ongaphansi kwamanzi e-China - i-Xiamen Xiang'an Underwater Tunnel Project. Iminyaka engama-28, igxile ocwaningweni nasekuthuthukisweni kwemikhiqizo nezinsizakalo ezingangeni manzi ze-polymer, kancane kancane ikhula yaba umholi emikhiqizweni ye-polymer engangeni manzi eChina.