                      </div>
                            </div>

                            <div class="form-group">
                                <label class="col-sm-3 control-label">产品</label>
                                <div class="col-sm-8">
                                    <select id="product_code" name="product_code"
                                            data-placeholder="产品code...."
                                            class="chosen-select form-control m-b" >
         