... .2T weight , factory built in 1966 have ISO 9001 and API certificate QF-1300 triplex drilling mud pump is a horizontal ... Qingzhou Petroleum Machinery Factory Co., Ltd utilizing American technology and API standards. All parts can be changed with each other in ... built-up area, with general assets of 150 million RMB), API 7K-0214, and ISO 9001 Quality system . is one of the ...