2022/05/19
执行标准:GB/T24593, GB/T12770, GB/T12771,也可按照美标ASTM A249,ASTM A26, ASTM A554,ASTM A312生产
2022/05/19
执行标准:ASTM B514, ASTM B515, ASTM B704Executive Standard: ASTM B514, ASTM B515, ASTM B704.
2022/05/19
生产标准:GB/T3625,ASTM B338, ASTM B862.Executive Standard: GB/T3625,ASTM B338, ASTM B862.