Beijing environmental science and technology ltd. Is registered in room 402 on the fourth floor of the 1093 town street office in tunzhou, beijing; specialized instrument manufacturing; metal tools sales; specialized equipment repair; environmental protection monitoring; instrument repair; retail sales of electrical equipment; marine environmental services; installation of general machinery; engineering technical services (except planning, surveying, design, monitoring); marketing of forest products; environmental advisory services; communications equipment sales; wind power technology services; instrument sales; metal products sales; sewing machinery sales; specialized instrument manufacturing; specialized equipment sales; specialized equipment repair of equipment; environmental protection; environmental monitoring; instrument repair; instrument repairing; retail sales of electrical equipment; marine environmental services; installation of general machinery; computer systems services; new materials promotion services; software development; information system integration services; import and export of goods; atmospheric pollution management; water pollution management; specialized equipment manufacturing of instrumentation; specialized equipment for information technology services; emergency environmental technology manufacturing; specialized instrumentation instrumentation; eco-environmental monitoring and detection equipment; retail distribution of equipment; retail sale of equipment to supply and supply equipment; sale of equipment to supply and supply equipment; sale of equipment to supply equipment and supply of equipment to supply equipment; supply of equipment and licensing projects (in addition to those subject to legal authorization, operating on an autonomous basis under an operating licence): production of equipment for the processing of electrothermal foods; design of construction works; handling of electrical and waste appliances; commissioning of pharmaceutical products; electrical installation services. (a project subject to approval by law may only be carried out with the approval of the relevant department, depending on the documents or licences approved by the relevant department) (no activity shall be carried out in the category of projects prohibited and restricted by the state and municipal industrial policy