How about Gaoyou Xiang Hao Petroleum Machinery Co., Ltd.?

It is a formal enterprise. Gaoyou Xiang Hao Petroleum Machinery Co., Ltd. is a formal enterprise with a formal business license. Obtained the quality system management certification of APIQ 1 and ISO9000, with API7K and 8C certification. Judging whether an institution is formal can be judged by judging whether it has a business license. Regular institutions will have a formal business license.