Profile: Shanghai Weifang Fine Chemical Co., Ltd. is a manufacturer of chemical intermediates. Our products include triphenyl phosphine, triphenyl phosphine oxide, benzenephosphonous dichloride, diphenyl phosphine, chlorodiphenyl phosphine, diphenyl phosphinic chloride, tributyl phosphine, tetraphenyl phosphonium bromide, methytriphenyl phosphonium bromide, ethyltripheny phosphonium chloride, ethyltripheny phosphonium iodide and triethysilyl chloride.