Qingdao Alastin Sab Nraum Zoov Khoom Co., Ltd. yog ib lub tuam txhab kev tshaj lij koom nrog cov hlau tsis xeb, khoom siv marine, kev tshawb fawb kho vajtse, kev txhim kho, kev tsim khoom, kev muag khoom thiab kev pabcuam.