Stainless square tube has two kinds, one is welded wihle the other is seamless one. The normal grade is 201, 304, 316, 310, 409, 420 etc. The welded one is usually welded from stainless steel trip by welded machine. The appplication is usually used for decoration like hand rail. The other type is seamless square tube, usually make from round seamless pipe, this sqaure tube can bear high press and appearance is also nice. It's widly used in engineering, coal mine, textile, electric power, boiler, machinery, military and other fields. 304 grade is cheaper and can be used in outside environment, so it's much popular in steel structure project. Inspection Picture: We can offer inspection service for client before delivery, like measuring,  PMI testing. Others like WOOD CASE PACKING MTC 3.1 IN ENGLISH VERSION PMI TESTING PHOTO FOR RECORD MARKING:  MR NUMBER - ITEM NUMBER - STANDARD - GRADE - SIZE - HEAT NO. Packing:  

Advantage: Raw material is from Top manufacture which promise the high quality. Accurate technology confirm the exact size tolerance. Efficient sales team give you proper proposal. After-sales team offer and support for product guarantee. Quality Control: Our Service： RFQ: Q1: Are you manufacture or Trader A: We are both manufacture and trader Q2: Can you offer sample? A: Sample small one can be offered by free, but buyer should pay the express fee Q3: Can you offer processing service? A: We can offer cutting, drilling, painting, galvanizing etc... Q4: What is your advantage on steel? A: We can customize steel structure accoridng to buy's drawings or request. Q5: How about your logistic service? A: we have professional logistic team who has rich experience on shipping, can offer the steady and quality ship line. Contact Way: Cell/whatsapp/Wechat: +86 182 4897 6466 Skype: roger12102086 Facebook: roger@shhuaxinsteel.com Market: For overseas, our main client from South Asia, Africa, South America like Singapore, Vietnam,  Brazil, Ghana, New Zealand, Spain, Mauritius, Dubai etc.