apex group is a national high-tech enterprise with cutting-edge welding and precision machining capabilities. apex fully integrates r & d, production, sales, and after-sales service in our operations. apex has been qualified and attained iso 9001, api-q1, iso 14001, iso 45001, api-11e, api-7k, api-8c, api-7-1, iso 3834, en 1090 and asme certifications. with outstanding design and manufacturing capabilities, apex products have achieved excellent performance in product fields of pumping unit, gear reducer, top drive system, mud pump, wind power equipment, construction machinery equipment, metallurgical equipment and more.