铸钢法兰截止阀J41H-16C(重型)
铸钢法兰截止阀J41H-16C(中型)
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)