J41H锻钢法兰截止阀J41H

Q11F锻钢三片式内螺纹球阀Q11F

H61H锻钢承插焊升降式止回阀H61H

H11H锻钢内螺纹止回阀H11H 升降式止回阀

Z61H承插焊锻钢闸阀Z61H

Z61Y高压自密封锻钢闸阀

BZ61H锻钢波纹管焊接闸阀BZ61H

BJ61H锻钢波纹管焊接截止阀BJ61H

J11H锻钢内螺纹截止阀J11H

Z11H锻钢内螺纹闸阀Z11H

H61Y锻钢自密封高压止回阀H61Y