ADTO contributes the engagementt in R&D, manufacturing and international trade of precision steel tubes. The products focus on round and profiled cold-rolled precision steel tubes, machinery spare parts. Our manufacturing range rates within sizes of inner diameter from 120mm to 10mm, of thickness from 18mm to 0.5mm, of the precision 0.03mm, and of inner surface roughness Ra 0.4-1.6, the type of steel tubes include 10#，20#, 35#, 45#, 160Mn, 20GrMo, 35GrMo, 40Gr. Thery match the main standards such as GB/T3639, DIN2391, EN10305-1, ISO4394-1, ASTM A53, ASME, BS5242-1, API 5CT, SAE J179, NF A 49-310, JIS.
Packaging and Shipping
Packaging Details: waterproof packing ,packed in bundle,suitable for sea transport. Delivery Detail: In 25 days after receive the L/C or deposit
ADTO Industrial Group, Co., Limited, founded in 1998, ADTO is a leading building material supplier and manufacture in China, centering on R&D, producing and selling of building material of scaffolding, aluminum formwork, fastener and coupler, integrates business of steel, logistic and wire & cables service. The group has more than 10 subdivisions and four manufacturing bases, possessing the right to import and export with business coverages spanning over more than 50 places and areas. Over 5000 international big buyers keep ADTO as their long term business partner.
1. Experience: Founded in 1998, more than 17 years in construction materials manufacturing
2. Product Idea: Quality decided to safety, safety is the hard truth.
3. Certifications: ISO, CE, SGS, BV
4. Production base: Four factories, more than 400,000 square meters