活塞杆用UNS系列名称代号外径D内径d厚HUNS6.316.36.38UNS7.117.17.18UNS81888UNS91998UNS1020108UNS11.221.211.28UNS12.522.512.58UNS1424148UNS1525158UNS1626168UNS1828188UNS2030208UNS22.432.422.48UNS2535258UNS28432810.2UNS30453010.2UNS31.546.531.510.2UNS35503510.2UNS35.550.535.510.2UNS40554010.2UNS45604510.2UNS48634810.2UNS50655010.2UNS53735312UNS55755512UNS56765612UNS6080