色不卡_日本成本人片免费网站_1000部啪啪未满十八勿入_老师脱了内裤让我进去_欧美在线不卡视频_在线视频免费观看www

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.