Сведения о компании
CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD
elbow production
https://www.youtube.com/watch?v=0u4b4wn2MWg
Steel elbow marking
https://www.youtube.com/watch?v=b005MdH1d9M
4D elbow
https://www.youtube.com/watch?v=srXw1Yw7T0A
Pipe material cutting
https://www.youtube.com/watch?v=IUZTjBDtLBU&feature=youtu.be
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