Shanghai Rong Feng Precision Tube Co., Ltd. is from shanghai china, we are professtional in producing all kinds of nickel alloy, incoloy, inconel, monel, hastelloy and stainless steel tubings including seamless and welded, and tube fitting and instrumentation valves.  Our products are approved by ISO9000 TS PED NORSOKM650 ABS BV CCS DNVGL KR KR RS RINA, we have regular stock for all sizes to make quick response to customer urgent requirements.