... type 4.thickness:1.5-3mm sanitary tube 316 stainless steel tube stainless steel square tube Steel material: AISI 201/202/304 ... /304L/316/316L 1. Our ASTM A554 stainless steel tubes including: running water pipes; 2.Material: AISI 201 ... X 4000-7000mm) LONG4. Uses: for running water system, furniture, railings, yacht, marine, towel dryer, window guards, ship building,heater exchange ...