久久久久国产精品aⅴ天堂,成人性生交A片免费直播APP ,男女扒开双腿猛进入爽爽免费,日本JAPANESE少妇高清

    Qingdao J&K Co., Ltd. Specializes in manufacturing and exporting Pressure gauge, Pressure regulator, Manometer and Pressure thermometer. 

    We have a strong network that allows us to design and customize products. We currently produce over 8 varieties, more than 100 series, and about 1, 000 specifications of instruments for various industries including oil exploration, chemical industry, chemical fiber industry, iron and steel industry, metallurgical industry, power generation plants, food industry and scientific research. 

    Our products are exported to East Asia such as Korea & Japan; The European Union such as Russia, Germany & Italy; The Middle East, America. Southeast Asia such as Vietnam, Thailand & Indonesia. 

    As a well-known manufacturer in China, our factory has approved by CCC, ISO14001, ISO9001, CE, SGS and KS certificates. 

    We will unswervingly make more efforts to supply competitive products and the best services to all customers.  

    Once cooperation, friends forever!