STEEL COUPLING 1) Materials: 304, 304L, 316, 316L, 321 2) Forming type: mandrel-forming 3) Standards: ASME B16.9, ... , 316, 316L, 321 2) Forming type: mandrel-forming 3) Standards: ASME B16.9,MSS SP-43,DIN 2605,JIS ... B2313,GB/T 12459, GB/T 13401,SH 3409,SH 3409,HG/T 21635,HG/T 21631 4) Sizes: seamless:1/2"- ... 2008 Payment terms: L/C,T/T Delivery timeAfter receive the L/C,T/T 25-35 days Promise According to ...