... 2. Surface: Polish, sand polishing, 6K, 8K, etc. 3. Technique: Welded Stainless steel tube pipe1. Material: SS304, 3162. Surface: Polish, sand polishing, 6K ... , 8K, etc. 3. Technique: WeldedAISI 304/316 Stainless steel tube pipe 1. Stainless steel tube pipe with good quality2. Surface: mirror ...