截止阀 1/2NPT"150LB#:316 316L 1/2NPT"300LB#:316 316L HOLLOW HEX PLUGS 107H-1/4107H-1/46L气体,25-30分钟放完气达到正常大气压,不锈钢,法兰连接KF25或KF16 堵头1/4 7121L SS 1/4 316 SS PLUG 1/4"OD 762LSS 16MM union union 762L-12 REDUCING union 763L-10X6union TEE 764L SS 16MM union TEE union TEE 764L-6 765LSS 12MM 316 SS UNIONELBOW 12MMOD union ELBOW 765L-6765L型8MM*8MM 768L(6mm卡套转1/4NPT接头) HAM-LET 768L SS 18MM X 1/2 MALE CONNECTOR等