日本采购需求：平菇菌种

I'm interested in getting some details about your oyster mushroom sawdust spawn. Could you please provide me with your current pricing, including any bulk purchase discounts or available package sizes? Additionally, I'd like to know about the lead times for orders and whether you have any shipping options or recommendations for delivery. If you have any product specifications or certifications, that would be helpful as well! Looking forward to your prompt response.