贺德克球阀型号 HKB-G1/4-1112-01X (DN06) HKB-G3/8-1112-01X (DN10) HKB-G1/2-1112-01X (DN16) HKB-G3/4-1112-01X (DN20) HKB-G1-1112-01X (DN25) HKM-G11/4-1112-01X (DN32) HKM-G11/2-1112-01X (DN40) HKM-G2-1112-01X (DN50) HKB-10LR-1112-01X (DN06) HKB-12LR-1112-01X (DN06) HKB-15LR-1112-01X (DN10) HKB-18LR-1112-01X (DN16) HKB-22LR-1112-01X (DN20) HKB-28LR-1112-01X (DN25) HKB-35LR-1112-01X (DN25/32) HKM-35LR-1112-01