视频免费看_一级毛片一级毛片一级毛片aa一_欧美亚洲综合网_亚洲草逼视频_av色伊人久久?合一区二区_欧美九九视频_中国免费一级毛片_亚洲va国产2019_一区二区福利视频_国产又色又爽又黄的_色欲AV亚洲永久无码精品_看片网站免费观看_欧美黄色片一区二区_尤物视频最新网址_51国产视频_狠狠色噜噜狠_亚洲黄色官网_japanese乱人伦精品_亚洲香蕉av_国产91丝袜在线18_自拍偷拍第八页_一代妖后在线观看_欧美日本国产VA高清CABAL_国产精品国产三级国产普通话三级_欧美日韩xxxx_精品欧美乱码久久久久久1区2区_视频一区在线播放_久久精品网站免费观看_欧美永久精品_日韩在线观看一区二区三区

Wuxi Fast Dingyuan Precision Steel Pipe Co.,Ltd. was established in 2002 and covers an area around 64,000 m2. We are a sole proprietor focusing on precision steel pipe. We have advanced processing technic and comprehensive equipment. We are able to produce cold-drawn and cold-rolled seamless steel pipe of various material quality and sized with an external diameter of 10-144 mm and a wall thickness of 2-15 mm. The yearly production amount can hit 50,000 tons. Our products are extensively used in petrochemical, boiler, automobile, machinery, construction, electricity, boat and other industries.

We hold CQCISO9001:2015 from China Quality Certification Center, TSG special equipment system certification from China Quality Supervision, Inspection and Quarantine Bureau, TUVNORD PED from EU and API5CT/API5L Certificate of Authority to use the Official Monogram from API.

Precision seamless steel pipe is cold-drawn and cold-rolled precision steel pipe. There is no oxide layer on the both sides of the steel pipes. The pipes owns advantages, such as bearing high pressure without leakage, high precision, high fineness, no shape change with cold-bending, no seam with spin-over. They are used to produce components of pressure vessels, engineering mining machinery and trucks and pneumatic and hydraulic components, such as gas cylinder, oil cylinder and automobile parts.