... .22MM—3MM1. Our ASTM A554 stainless steel tubes including: running water pipes; 2. Standard : according to ASTM A554.3.Steel ... .22mm-3mm) WT X 4000-7000mm) LONG5. Uses: for running water system, furniture, railings, yacht, marine, towel dryer, window guards, ship building ... ,heater exchange, container,water and so on6. Length: 4-7m random or fixed.such ...