3 1 cert welded fin tubes

{"cid":"91198556","title":"DELLOK Seamless Solid Plain Serrated 3.1 Cert Welded Fin Tubes","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d7\/46\/43bfb43e83f7322a2d96ce45b87f-200x200-1.jpg","attrs":{"Price":"N\/A Contact us for details","Brand Name":"DELLOK","Model Number":"HFW","Minimum Order Quantity":"N\/A Contact us for details","Delivery Time":"Ex-work within 1 month on recepit of order.","Certification":"CE. ISO,EN10204. 3.1 Cert.","Place of Origin":"China","Payment Terms":"L\/C, T\/T Contact us for details","Supply Ability":"60000 meters month","Packaging Details":"(1) Waterproof steel frame bundle package;(2)Steel frame case sealed by plywoods with each end capped.","Tube OD:":"19mm min.","Tube Length:":"18 meters max.","Fin Height:":"26 mm max.","Fin Thickness:":"0.8mm min","Fin Pitch:":"min. 4 mm for solid fins & 3.3mm for serrated fins.","HFW Fin type:":"solid plain and serrated."}}