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

Shandong Tengyuan Building Materials Technology Co.,Ltd is committed to improving the efficiency and safety of fluid delivery, realizing a healthier and more wonderful world. Our mission and vision is aiming to be a global trusted and century-old enterprise which views innovation as the driving force of sustainable development and creates value for society, customers, shareholders, employees.

We are located in Jixi Industrial Park, Lanshan district, Linyi city, Shandong province. Its registered capital is USD 18 million, building area covering more than 60,000 square meters. At present, there are more than 390 employees, among which 36 are professional technician,12 are engineers,4 are senior engineers. Now we have more than 60 sets of international top-class PE pipe production lines(ranging from DN20mm to DN1800mm),such as Battenfeld, KraussMaffei and so on, more than 90 sets of injection molding machines and various auxiliary equipments. We owns anti-static spraying for PE pipe fittings and many other patent technologies. Our annual production capability is 100,000 tons of plastic pipe and 6,000 tons of pipe fittings.

We are a high-tech enterprise collecting R&D, production and marketing, which has two subordinate holding companies of Shandong Tengyuan Plastic Co., LTD and Shandong Federal Plastic Co., LTD, five production bases in Shandong province, Hebei province, Liaoning province, Gansu province and Hunan province respectively, covering an area of 200,000 square meters.

Currently, our main products contain 6 systems of municipal engineering, gas engineering, dredging engineering, mining engineering, agricultural irrigation, electricity engineering,more than 20 series of HDPE water supply pipes, HDPE dredging pipes, HDPE gas pipes, HDPE flame-retardant & antistatic mining pipes, HDPE GSHP pipes, HDPE siphon drainage pipes, HDPE pipe fittings, MPP electrical conduits and so on and more than 6000 specifications.