多项选择题
A.RoHS B.RoHS+HF C.Q/S0002 D.Q/S0002+HF
A.欧盟RoHS B.WEEE C.欧盟REACH D.环境物质管理基准
A.Br<900ppm B.Br<500ppm C.Cl+Br<1800ppm D.Cl<900ppm