铸钢法兰截止阀J41H-16C(重型)
304氨用截止阀AJ41F-16P
铸钢法兰截止阀J41H-16C(中型)
铸钢氨用截止阀J44H-16C
304法兰截止阀J41W-16P(中型)
304法兰截止阀J41W-16P(重型)
316法兰截止阀J41W-16R(重型)
暗杆铸钢氨用截止阀AJ41F-16C